eps = 0.01	N (Size of field)
	[10, 12]			[13, 15]			[16, 18]			[19, 20]
M (Number of oil fields)	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases
2	261,159,710	212	7	114,038,994	186	4	86,553,029	164	4	8,162,217	265	1
3	490,646,789	172	10	76,818,649	196	2	57,744,360	199	3	35,853,068	187	2
4	394,071,807	215	11	101,152,126	182	3	68,667,893	229	4	-	-	-
5	248,773,038	217	6	164,501,984	194	6	26,624,964	219	2	34,202,734	235	3
6	159,088,446	226	5	123,458,883	207	5	112,256,012	184	5	12,185,000	230	1
7	-	-	-	210,535,479	178	5	107,146,875	144	4	-	-	-
8	-	-	-	293,465,851	206	7	19,819,677	201	1	-	-	-
[9, 10]	-	-	-	329,498,516	171	8	346,682,975	163	10	172,278,864	155	6
[11, 14]	-	-	-	38,593,675	206	1	694,137,878	149	13	302,161,885	126	8
[15, 20]	-	-	-	-	-	-	47,051,678	186	1	717,647,653	121	8

eps = 0.02	N (Size of field)
	[10, 12]			[13, 15]			[16, 18]			[19, 20]
M (Number of oil fields)	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases
2	498,956,928	181	10	151,868,900	157	3	160,849,844	156	5	19,470,083	195	1
3	345,834,819	184	6	251,180,016	173	6	101,570,435	193	4	32,733,377	223	2
4	397,525,085	230	9	17,413,526	251	1	16,631,786	258	1	24,918,532	258	2
5	439,318,954	168	8	91,227,898	221	3	73,342,917	142	3	11,525,709	209	1
6	385,610,566	182	8	201,551,970	218	8	122,491,020	202	5	28,781,616	206	2
7	-	-	-	167,044,345	183	4	100,789,910	142	3	-	-	-
8	-	-	-	214,377,203	193	5	99,331,379	155	3	-	-	-
[9, 10]	-	-	-	234,772,861	160	5	309,528,499	142	7	108,042,014	138	3
[11, 14]	-	-	-	-	-	-	467,089,813	115	9	253,979,363	116	5
[15, 20]	-	-	-	-	-	-	280,050,392	96	4	585,378,407	97	5

eps = 0.03	N (Size of field)
	[10, 12]			[13, 15]			[16, 18]			[19, 20]
M (Number of oil fields)	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases
2	714,845,228	178	13	245,255,339	132	5	147,520,973	162	5	41,568,556	134	1
3	348,872,906	225	6	261,450,627	216	8	52,640,261	234	2	48,405,222	89	1
4	687,277,047	208	11	171,622,870	237	6	56,916,615	214	3	36,078,950	90	1
5	170,506,112	186	3	87,922,942	179	2	117,121,300	232	5	-	-	-
6	329,397,600	204	6	270,655,914	178	5	-	-	-	-	-	-
7	138,748,101	171	2	325,833,667	186	7	166,704,019	162	5	-	-	-
8	-	-	-	70,412,677	173	2	255,527,297	169	7	31,244,423	137	1
[9, 10]	-	-	-	277,679,171	124	5	188,266,704	160	4	74,274,353	148	2
[11, 14]	-	-	-	41,957,534	154	1	671,403,995	142	11	592,600,059	115	11
[15, 20]	-	-	-	-	-	-	89,558,482	139	1	422,463,011	105	4

eps = 0.04	N (Size of field)
	[10, 12]			[13, 15]			[16, 18]			[19, 20]
M (Number of oil fields)	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases
2	585,437,605	193	9	366,738,952	129	6	186,899,910	187	5	-	-	-
3	455,505,662	231	9	228,854,057	172	5	177,426,284	193	5	17,448,966	197	1
4	456,167,413	212	8	196,830,263	163	4	57,598,714	252	3	52,600,349	238	3
5	469,453,845	211	8	223,730,191	219	6	193,815,196	204	7	32,163,632	128	1
6	364,861,034	187	6	236,343,511	130	4	-	-	-	80,836,100	183	3
7	163,943,237	125	2	369,093,501	166	7	152,084,735	162	4	30,639,000	154	1
8	-	-	-	350,558,011	171	6	253,538,063	152	6	107,878,084	168	3
[9, 10]	-	-	-	252,404,865	153	4	345,685,271	148	6	82,364,029	120	2
[11, 14]	-	-	-	85,330,720	320	1	916,037,173	134	12	450,579,162	116	6
[15, 20]	-	-	-	-	-	-	221,468,416	172	2	792,811,304	118	9

eps = 0.05	N (Size of field)
	[10, 12]			[13, 15]			[16, 18]			[19, 20]
M (Number of oil fields)	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases
2	497,683,733	185	9	200,149,583	185	5	217,484,764	143	5	123,217,542	139	3
3	432,622,768	234	7	340,275,854	207	6	60,932,916	190	2	-	-	-
4	773,720,870	182	11	359,915,814	178	6	94,913,259	250	3	81,998,418	139	3
5	1,154,863,247	217	17	280,336,688	226	6	197,231,535	181	6	-	-	-
6	384,639,815	196	5	149,284,417	214	3	129,443,715	189	4	66,284,340	174	2
7	-	-	-	326,014,366	162	5	170,063,455	165	5	30,695,262	129	1
8	-	-	-	388,603,332	179	7	75,514,290	173	2	88,830,478	117	2
[9, 10]	-	-	-	144,917,181	143	2	299,941,025	150	5	103,005,822	160	2
[11, 14]	-	-	-	79,279,143	129	1	776,883,534	116	10	497,121,183	129	8
[15, 20]	-	-	-	-	-	-	244,814,764	153	2	1,153,439,275	91	7

eps = 0.06	N (Size of field)
	[10, 12]			[13, 15]			[16, 18]			[19, 20]
M (Number of oil fields)	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases
2	1,459,379,906	113	16	209,733,821	119	3	221,259,456	177	4	42,387,308	190	1
3	557,856,442	212	9	84,851,909	161	1	297,464,558	192	8	117,698,297	130	3
4	1,001,525,014	203	13	208,905,496	247	4	182,551,238	156	4	61,643,470	161	2
5	621,247,989	183	7	346,230,287	188	7	111,087,445	225	4	32,039,004	201	2
6	532,764,692	162	6	219,446,661	212	4	270,307,228	155	5	43,617,383	203	1
7	93,214,513	282	1	663,369,732	165	9	92,191,171	157	2	31,094,176	172	1
8	-	-	-	335,020,126	171	5	47,738,617	183	1	36,025,317	136	1
[9, 10]	-	-	-	269,485,480	132	4	198,114,659	158	4	53,203,394	126	1
[11, 14]	-	-	-	292,180,812	147	3	634,465,973	147	7	539,748,058	134	8
[15, 20]	-	-	-	-	-	-	-	-	-	1,096,036,245	93	7

eps = 0.07	N (Size of field)
	[10, 12]			[13, 15]			[16, 18]			[19, 20]
M (Number of oil fields)	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases
2	720,613,820	172	9	79,197,100	170	2	220,245,989	194	4	96,175,762	96	2
3	568,509,564	193	7	133,308,006	190	3	163,653,667	225	5	18,769,526	190	1
4	851,121,830	212	11	202,505,038	242	5	50,278,394	243	2	139,594,248	193	5
5	518,972,259	197	6	398,767,730	230	7	78,303,141	212	3	66,521,547	211	3
6	502,078,781	156	5	321,094,283	171	5	275,637,608	177	5	-	-	-
7	146,254,969	160	1	632,616,288	168	9	145,929,663	148	3	83,397,592	142	2
8	-	-	-	541,941,453	167	7	432,834,787	163	6	191,621,468	169	4
[9, 10]	-	-	-	546,740,316	144	6	239,851,789	156	3	243,778,272	124	4
[11, 14]	-	-	-	-	-	-	771,841,673	115	7	451,524,674	128	6
[15, 20]	-	-	-	-	-	-	86,626,421	112	1	897,537,538	109	6

eps = 0.08	N (Size of field)
	[10, 12]			[13, 15]			[16, 18]			[19, 20]
M (Number of oil fields)	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases
2	337,418,822	175	5	313,497,592	147	6	67,357,667	110	1	60,503,143	81	1
3	404,941,335	218	6	268,495,894	187	5	100,804,422	152	2	38,571,000	156	1
4	694,174,029	198	7	429,826,749	226	8	345,784,325	175	6	14,578,079	246	1
5	660,432,430	227	8	379,843,700	204	6	33,938,646	212	1	-	-	-
6	197,867,828	172	2	286,686,703	181	4	-	-	-	90,585,057	157	2
7	107,307,075	179	1	389,352,292	188	5	123,560,692	193	2	119,743,206	177	3
8	-	-	-	220,025,984	170	3	196,120,257	177	3	91,424,132	158	2
[9, 10]	-	-	-	82,903,038	174	1	482,064,077	109	5	352,888,805	135	6
[11, 14]	-	-	-	-	-	-	1,360,224,925	120	13	347,809,793	94	3
[15, 20]	-	-	-	-	-	-	-	-	-	1,025,153,031	86	6

eps = 0.09	N (Size of field)
	[10, 12]			[13, 15]			[16, 18]			[19, 20]
M (Number of oil fields)	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases
2	1,022,332,207	169	13	282,390,984	122	5	180,126,114	107	4	28,630,125	111	1
3	824,813,708	206	10	547,004,840	166	8	459,315,485	135	6	103,144,161	156	3
4	749,500,943	199	9	413,772,466	198	6	156,101,597	185	3	-	-	-
5	1,121,661,610	175	11	229,737,813	186	3	318,199,518	174	6	45,441,660	176	1
6	209,825,207	159	2	787,600,977	172	9	82,285,356	192	2	-	-	-
7	160,485,970	153	1	390,642,618	181	4	217,001,449	173	3	38,316,129	178	1
8	-	-	-	550,993,173	177	6	202,024,056	179	3	123,760,268	137	2
[9, 10]	-	-	-	279,033,841	171	3	239,453,357	134	3	216,407,526	141	3
[11, 14]	-	-	-	89,626,914	112	1	1,355,789,874	143	12	546,390,539	128	6
[15, 20]	-	-	-	-	-	-	142,033,278	118	1	1,355,904,282	89	8

eps = 0.1	N (Size of field)
	[10, 12]			[13, 15]			[16, 18]			[19, 20]
M (Number of oil fields)	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases
2	826,802,725	148	10	280,059,174	166	5	145,188,666	173	4	-	-	-
3	589,338,351	186	7	150,520,939	132	2	132,896,413	187	3	59,778,143	132	1
4	1,171,846,229	181	11	156,544,838	247	3	20,703,730	292	1	57,601,307	182	2
5	1,649,541,230	202	13	436,432,281	163	4	349,712,649	178	7	124,785,805	207	4
6	1,213,613,661	177	10	425,965,059	166	5	320,069,833	192	6	78,336,770	180	2
7	147,547,196	140	1	1,342,484,668	182	14	-	-	-	75,196,185	179	2
8	-	-	-	367,421,943	117	3	129,756,879	145	2	-	-	-
[9, 10]	-	-	-	610,239,920	124	5	280,997,926	169	3	426,030,349	160	6
[11, 14]	-	-	-	-	-	-	1,602,853,575	128	12	119,824,524	81	1
[15, 20]	-	-	-	-	-	-	738,483,969	100	5	1,312,035,737	96	7

eps = 0.11	N (Size of field)
	[10, 12]			[13, 15]			[16, 18]			[19, 20]
M (Number of oil fields)	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases
2	711,694,951	171	8	349,276,681	98	4	25,786,625	189	1	24,340,813	219	1
3	1,146,261,043	136	8	874,898,157	172	11	117,666,719	260	4	178,201,553	73	2
4	813,034,912	197	8	268,026,950	195	4	224,468,150	111	2	-	-	-
5	666,214,746	181	6	134,226,051	225	2	88,343,590	215	2	-	-	-
6	904,398,277	204	8	608,684,459	206	8	76,542,930	185	1	-	-	-
7	264,355,841	199	2	538,920,765	171	4	238,049,071	178	4	131,558,720	169	2
8	-	-	-	993,443,672	128	9	98,120,720	132	1	-	-	-
[9, 10]	-	-	-	-	-	-	747,722,067	135	7	98,287,333	120	1
[11, 14]	-	-	-	102,680,080	154	1	1,590,922,546	140	12	1,088,469,933	130	10
[15, 20]	-	-	-	-	-	-	511,135,623	161	3	3,416,732,457	103	14

eps = 0.12	N (Size of field)
	[10, 12]			[13, 15]			[16, 18]			[19, 20]
M (Number of oil fields)	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases
2	821,092,766	150	8	440,559,464	135	3	248,052,540	140	4	53,535,125	97	1
3	781,021,889	177	6	-	-	-	402,432,687	160	7	90,399,215	212	2
4	775,761,315	203	7	346,850,103	210	5	26,461,288	248	1	-	-	-
5	683,693,540	194	5	680,196,308	165	6	99,040,745	220	2	63,544,095	190	2
6	840,884,623	178	6	233,602,086	196	2	340,778,048	159	4	120,442,691	67	1
7	724,163,589	150	5	93,225,186	120	1	196,222,581	158	3	38,545,385	194	1
8	-	-	-	674,249,453	171	6	494,710,390	140	5	-	-	-
[9, 10]	-	-	-	629,905,974	122	5	795,165,742	134	7	228,881,380	149	3
[11, 14]	-	-	-	511,860,650	136	3	3,061,891,089	106	19	1,008,033,451	117	7
[15, 20]	-	-	-	-	-	-	226,391,113	74	1	1,124,344,193	83	6

eps = 0.13	N (Size of field)
	[10, 12]			[13, 15]			[16, 18]			[19, 20]
M (Number of oil fields)	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases
2	1,060,923,496	156	9	384,253,791	75	3	224,932,657	158	4	45,383,286	148	1
3	1,011,058,734	184	9	537,441,122	173	6	727,485,829	148	10	-	-	-
4	935,658,590	170	7	296,517,314	204	4	178,451,820	168	3	93,117,418	147	2
5	1,259,775,275	180	9	334,155,406	185	4	43,151,919	214	1	-	-	-
6	706,559,271	174	4	56,217,000	179	1	140,440,571	79	1	74,513,314	212	2
7	-	-	-	853,323,560	145	6	781,744,343	161	8	151,403,100	209	3
8	-	-	-	120,283,019	83	1	113,095,639	121	1	74,487,564	97	1
[9, 10]	-	-	-	780,765,963	133	5	863,773,957	121	7	394,075,131	151	4
[11, 14]	-	-	-	358,558,918	93	2	2,095,676,084	133	12	352,048,910	112	2
[15, 20]	-	-	-	-	-	-	943,692,560	100	4	1,791,708,100	102	6

eps = 0.14	N (Size of field)
	[10, 12]			[13, 15]			[16, 18]			[19, 20]
M (Number of oil fields)	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases
2	1,223,397,448	121	9	673,437,197	143	8	73,381,667	128	1	72,110,445	225	2
3	1,517,872,428	148	12	391,577,029	180	5	413,453,946	132	4	69,137,197	222	2
4	1,164,774,441	197	8	502,849,950	137	4	367,863,907	189	5	48,974,270	142	1
5	1,526,043,348	183	10	757,564,260	156	6	348,740,752	175	5	-	-	-
6	1,681,843,721	191	10	272,399,873	209	3	286,632,425	156	4	50,887,419	153	1
7	313,784,057	156	2	1,051,464,617	168	7	249,704,777	161	3	-	-	-
8	-	-	-	527,170,562	139	4	-	-	-	68,496,919	173	1
[9, 10]	-	-	-	602,274,699	114	4	482,063,520	116	4	296,150,169	98	2
[11, 14]	-	-	-	405,422,806	94	2	1,295,908,326	105	7	1,358,017,166	128	10
[15, 20]	-	-	-	-	-	-	580,878,483	160	2	1,888,479,551	120	6

eps = 0.15	N (Size of field)
	[10, 12]			[13, 15]			[16, 18]			[19, 20]
M (Number of oil fields)	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases
2	369,972,836	115	3	306,707,657	132	3	245,501,359	133	4	-	-	-
3	726,039,374	145	5	314,893,820	138	3	363,962,251	175	4	63,415,562	219	2
4	1,134,962,345	164	9	604,526,823	184	6	277,192,212	194	4	-	-	-
5	2,618,463,802	168	14	543,271,449	173	5	204,174,208	212	3	44,163,971	218	1
6	417,939,231	152	2	456,435,266	194	4	588,024,841	143	7	26,249,583	218	1
7	380,044,543	150	2	706,765,363	179	5	587,601,955	166	7	71,001,949	91	1
8	-	-	-	930,253,217	165	7	644,782,526	163	5	62,085,020	163	1
[9, 10]	-	-	-	974,437,527	131	5	933,802,962	144	7	310,865,443	141	3
[11, 14]	-	-	-	-	-	-	3,381,471,737	116	16	493,402,000	51	2
[15, 20]	-	-	-	-	-	-	355,301,497	87	1	5,223,492,310	92	13

eps = 0.16	N (Size of field)
	[10, 12]			[13, 15]			[16, 18]			[19, 20]
M (Number of oil fields)	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases
2	1,204,688,067	143	11	776,395,184	104	8	413,332,106	129	6	238,640,625	104	3
3	770,435,688	158	5	238,640,033	252	3	317,614,286	157	4	56,611,692	118	1
4	1,681,328,576	181	11	501,659,170	185	4	236,632,396	202	3	100,120,641	189	2
5	2,135,719,741	191	12	840,336,604	203	6	462,746,096	203	5	110,084,585	193	2
6	1,703,292,407	184	8	673,549,592	198	6	151,606,050	218	2	91,400,643	147	1
7	210,002,677	266	1	1,227,085,023	158	8	365,111,775	153	4	92,479,072	74	1
8	-	-	-	611,805,903	190	4	108,438,388	79	1	-	-	-
[9, 10]	-	-	-	1,060,453,584	144	5	334,607,528	120	3	528,974,584	104	4
[11, 14]	-	-	-	-	-	-	2,285,547,972	89	9	935,236,734	61	4
[15, 20]	-	-	-	-	-	-	588,080,885	69	2	767,816,449	141	2

eps = 0.17	N (Size of field)
	[10, 12]			[13, 15]			[16, 18]			[19, 20]
M (Number of oil fields)	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases
2	598,707,970	183	6	405,993,333	150	4	70,565,154	165	1	121,491,401	176	2
3	830,360,277	186	6	1,168,068,577	142	8	289,500,247	172	4	-	-	-
4	1,863,089,127	202	8	1,026,055,173	173	8	269,491,484	132	2	141,373,740	177	2
5	2,062,590,413	187	10	796,988,759	184	7	369,228,430	176	5	136,487,889	213	3
6	2,111,668,464	190	10	602,384,117	178	5	127,516,461	193	1	124,273,065	173	2
7	-	-	-	1,067,727,606	159	6	543,052,065	149	6	-	-	-
8	-	-	-	1,340,936,188	156	7	496,120,471	141	4	107,252,302	132	1
[9, 10]	-	-	-	709,193,081	93	3	1,286,842,206	123	8	441,598,521	147	4
[11, 14]	-	-	-	-	-	-	3,063,161,063	111	12	1,071,612,499	101	5
[15, 20]	-	-	-	-	-	-	1,322,532,280	96	3	3,171,538,261	89	7

eps = 0.18	N (Size of field)
	[10, 12]			[13, 15]			[16, 18]			[19, 20]
M (Number of oil fields)	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases
2	679,875,591	79	5	354,094,483	129	3	216,076,313	155	3	156,433,675	111	2
3	1,016,922,732	105	6	234,057,727	148	2	411,557,780	140	4	130,172,816	166	2
4	1,094,405,173	173	5	217,141,556	253	3	-	-	-	32,941,450	218	1
5	3,040,672,941	167	13	954,675,713	156	7	240,491,820	221	3	287,730,313	120	3
6	533,125,712	177	3	289,527,411	158	2	130,684,760	205	2	-	-	-
7	311,387,405	249	1	1,131,629,004	168	6	233,264,385	196	2	112,795,573	133	1
8	-	-	-	670,150,970	162	3	678,853,910	149	5	122,138,808	113	1
[9, 10]	-	-	-	1,348,154,208	109	4	798,011,213	145	4	512,966,572	114	3
[11, 14]	-	-	-	-	-	-	2,491,202,251	117	9	2,525,796,069	100	9
[15, 20]	-	-	-	-	-	-	384,160,071	55	1	2,034,218,282	90	4

eps = 0.19	N (Size of field)
	[10, 12]			[13, 15]			[16, 18]			[19, 20]
M (Number of oil fields)	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases
2	1,075,733,577	112	9	658,971,949	138	7	160,241,000	109	2	132,522,729	97	2
3	789,839,734	221	4	1,009,805,537	147	9	340,421,964	99	2	80,142,371	173	2
4	1,268,431,469	176	7	-	-	-	199,232,185	187	2	32,343,912	233	1
5	1,883,486,191	201	10	457,084,805	163	4	314,326,447	146	2	191,113,041	167	3
6	1,525,034,774	155	5	1,020,557,963	165	6	465,354,363	180	3	199,619,185	128	2
7	447,809,749	176	2	637,643,068	87	2	153,562,306	149	1	-	-	-
8	-	-	-	2,232,596,579	142	10	1,178,909,190	142	6	169,636,707	116	1
[9, 10]	-	-	-	1,883,048,625	139	8	1,393,769,794	114	7	276,450,102	122	2
[11, 14]	-	-	-	310,189,712	165	1	2,832,924,594	95	9	892,839,191	81	3
[15, 20]	-	-	-	-	-	-	367,027,059	73	1	5,845,495,681	89	11

eps = 0.2	N (Size of field)
	[10, 12]			[13, 15]			[16, 18]			[19, 20]
M (Number of oil fields)	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases	Score	Rank	Cases
2	1,016,941,127	132	9	679,616,318	147	6	657,385,431	104	6	-	-	-
3	792,340,554	179	5	324,278,242	177	3	242,185,306	176	3	98,126,455	65	1
4	1,621,827,834	192	8	1,027,633,950	142	6	535,599,991	181	6	180,191,317	228	3
5	3,195,500,944	191	13	642,660,906	143	4	577,637,854	121	4	311,711,583	150	3
6	282,572,176	146	1	317,357,382	207	2	532,836,101	126	4	76,802,448	188	1
7	-	-	-	1,711,358,263	144	7	491,787,868	122	4	364,470,103	134	3
8	-	-	-	476,020,365	168	3	242,474,879	185	2	-	-	-
[9, 10]	-	-	-	2,672,920,968	115	9	1,711,939,896	136	6	412,193,649	124	3
[11, 14]	-	-	-	1,451,824,526	108	4	1,805,617,355	73	4	1,382,952,424	93	5
[15, 20]	-	-	-	-	-	-	1,224,582,543	100	2	4,795,626,617	73	9