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	335,013,620	141	7	197,881,908	106	4	119,995,506	114	4	29,002,087	102	1
3	586,332,346	139	10	138,403,903	103	2	108,569,129	109	3	62,166,696	98	2
4	749,908,028	95	11	161,283,249	95	3	112,221,553	120	4	-	-	-
5	279,323,961	172	6	193,581,885	149	6	43,951,799	97	2	60,392,995	120	3
6	226,465,492	120	5	138,722,986	172	5	145,155,040	126	5	21,739,936	102	1
7	-	-	-	212,926,858	174	5	106,806,652	145	4	-	-	-
8	-	-	-	341,335,182	135	7	22,253,795	163	1	-	-	-
[9, 10]	-	-	-	342,490,014	149	8	406,689,180	111	10	193,550,548	115	6
[11, 14]	-	-	-	47,983,205	82	1	813,087,486	80	13	339,525,888	81	8
[15, 20]	-	-	-	-	-	-	61,844,962	47	1	785,227,579	82	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	486,831,593	189	10	147,063,766	164	3	165,353,206	153	5	53,353,194	90	1
3	385,727,375	160	6	264,591,946	161	6	137,826,779	147	4	89,561,933	90	2
4	571,917,536	142	9	28,554,349	169	1	20,011,031	219	1	52,307,839	115	2
5	434,682,472	171	8	107,785,795	174	3	61,408,990	189	3	23,240,402	112	1
6	449,968,351	119	8	255,577,356	140	8	181,316,922	91	5	49,233,741	100	2
7	-	-	-	176,838,031	157	4	92,888,763	174	3	-	-	-
8	-	-	-	262,561,356	98	5	114,975,083	110	3	-	-	-
[9, 10]	-	-	-	251,801,596	128	5	318,719,661	127	7	112,871,062	121	3
[11, 14]	-	-	-	-	-	-	497,803,741	94	9	259,837,122	104	5
[15, 20]	-	-	-	-	-	-	289,136,119	83	4	594,392,420	91	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	769,066,353	163	13	334,819,392	100	5	174,260,647	113	5	39,592,406	171	1
3	503,346,615	126	6	389,114,667	139	8	135,530,387	93	2	45,431,067	95	1
4	868,792,857	151	11	298,967,556	125	6	75,139,387	147	3	23,178,308	158	1
5	187,186,853	163	3	104,395,285	138	2	171,378,480	116	5	-	-	-
6	383,047,329	144	6	332,548,359	107	5	-	-	-	-	-	-
7	149,428,387	143	2	361,771,871	145	7	185,691,219	133	5	-	-	-
8	-	-	-	85,283,966	113	2	292,450,233	116	7	34,845,356	113	1
[9, 10]	-	-	-	263,422,108	150	5	184,487,294	166	4	88,582,268	83	2
[11, 14]	-	-	-	49,607,589	89	1	737,213,364	99	11	584,718,394	125	11
[15, 20]	-	-	-	-	-	-	103,447,059	74	1	442,457,975	80	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	634,278,219	178	9	338,145,054	141	6	326,568,735	94	5	-	-	-
3	720,458,132	108	9	306,519,711	117	5	279,797,972	101	5	0	1001	1
4	573,644,903	148	8	228,498,788	138	4	102,782,134	154	3	92,749,190	114	3
5	616,503,151	130	8	279,696,878	148	6	271,141,965	121	7	38,222,493	88	1
6	395,152,512	161	6	270,956,239	85	4	-	-	-	155,401,272	58	3
7	174,229,406	102	2	425,635,233	123	7	216,786,742	82	4	34,589,123	116	1
8	-	-	-	368,211,418	152	6	269,480,481	131	6	123,962,582	128	3
[9, 10]	-	-	-	248,413,761	158	4	371,889,556	111	6	77,425,359	137	2
[11, 14]	-	-	-	148,528,795	35	1	1,080,456,152	70	12	473,108,632	90	6
[15, 20]	-	-	-	-	-	-	259,165,752	69	2	871,063,178	70	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	489,952,424	190	9	211,662,062	170	5	284,983,787	98	5	125,105,378	137	3
3	665,351,071	121	7	485,857,888	127	6	88,280,806	131	2	-	-	-
4	921,086,821	138	11	483,453,367	127	6	198,307,127	93	3	68,792,346	179	3
5	1,423,378,641	152	17	424,743,312	116	6	262,349,164	112	6	-	-	-
6	424,031,270	162	5	184,709,985	143	3	156,997,017	132	4	71,304,363	148	2
7	-	-	-	360,929,928	131	5	193,860,420	123	5	28,436,552	161	1
8	-	-	-	451,285,712	123	7	115,565,884	72	2	85,459,232	130	2
[9, 10]	-	-	-	143,615,962	145	2	300,139,883	149	5	106,626,421	145	2
[11, 14]	-	-	-	85,322,970	104	1	788,686,745	107	10	525,169,719	101	8
[15, 20]	-	-	-	-	-	-	299,892,903	49	2	1,097,700,337	122	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	1,200,580,529	178	16	217,812,538	116	3	359,967,914	84	4	65,010,848	107	1
3	752,343,649	148	9	114,336,677	122	1	458,441,598	108	8	174,698,046	84	3
4	1,294,227,873	139	13	257,098,202	181	4	187,858,708	147	4	57,710,517	173	2
5	678,740,719	158	7	416,976,709	142	7	172,078,034	123	4	42,412,568	141	2
6	620,426,339	106	6	308,454,697	100	4	298,085,836	127	5	44,810,390	197	1
7	129,536,423	86	1	611,412,233	205	9	90,613,340	167	2	36,213,368	127	1
8	-	-	-	372,915,936	124	5	56,510,779	124	1	36,226,804	134	1
[9, 10]	-	-	-	284,452,144	111	4	218,210,012	119	4	55,738,332	105	1
[11, 14]	-	-	-	314,470,634	99	3	731,237,359	81	7	600,676,167	87	8
[15, 20]	-	-	-	-	-	-	-	-	-	989,789,851	149	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	578,320,471	229	9	67,966,236	211	2	237,348,701	176	4	67,218,324	174	2
3	612,341,106	178	7	161,980,680	153	3	266,733,099	135	5	26,192,931	146	1
4	989,969,716	168	11	344,555,187	133	5	72,668,162	161	2	155,465,149	164	5
5	571,740,089	167	6	526,040,555	153	7	100,649,248	147	3	97,801,335	115	3
6	495,337,897	166	5	365,811,108	118	5	298,458,572	151	5	-	-	-
7	170,964,712	84	1	705,651,889	130	9	155,161,417	130	3	86,796,314	127	2
8	-	-	-	650,782,618	105	7	461,849,990	132	6	222,959,266	126	4
[9, 10]	-	-	-	647,477,186	81	6	264,186,897	112	3	225,068,810	159	4
[11, 14]	-	-	-	-	-	-	808,424,295	89	7	449,667,520	133	6
[15, 20]	-	-	-	-	-	-	74,706,406	183	1	1,009,532,535	56	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	285,516,047	213	5	368,967,965	102	6	45,829,518	188	1	36,767,439	200	1
3	531,185,213	172	6	387,061,590	127	5	92,259,689	171	2	27,919,038	217	1
4	786,242,608	164	7	495,066,894	194	8	387,928,081	144	6	22,289,839	159	1
5	795,856,283	161	8	391,607,670	192	6	31,381,732	230	1	-	-	-
6	196,651,532	173	2	350,186,902	110	4	-	-	-	102,070,468	110	2
7	145,861,429	80	1	432,317,662	144	5	145,717,562	130	2	141,967,844	127	3
8	-	-	-	270,044,812	105	3	214,530,510	143	3	96,043,224	139	2
[9, 10]	-	-	-	89,220,784	144	1	448,994,561	143	5	372,626,203	120	6
[11, 14]	-	-	-	-	-	-	1,414,433,786	101	13	378,290,458	64	3
[15, 20]	-	-	-	-	-	-	-	-	-	1,021,833,291	87	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	815,142,066	217	13	269,914,104	128	5	160,000,109	154	4	27,051,913	130	1
3	1,144,008,090	142	10	651,127,556	120	8	540,495,589	108	6	118,831,543	134	3
4	899,713,577	150	9	540,987,350	130	6	171,953,719	160	3	-	-	-
5	1,066,672,853	193	11	229,664,104	187	3	335,736,135	158	6	59,502,384	119	1
6	179,248,084	201	2	835,079,421	152	9	114,206,407	114	2	-	-	-
7	185,497,866	101	1	396,710,564	173	4	221,246,607	169	3	38,852,001	176	1
8	-	-	-	672,651,799	109	6	250,981,792	106	3	155,091,361	82	2
[9, 10]	-	-	-	322,967,130	113	3	241,959,393	130	3	226,220,784	125	3
[11, 14]	-	-	-	71,115,328	196	1	1,395,270,508	127	12	575,599,108	102	6
[15, 20]	-	-	-	-	-	-	167,213,064	53	1	1,419,501,878	73	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	800,841,461	166	10	279,377,445	168	5	175,013,001	137	4	-	-	-
3	697,521,599	145	7	182,113,916	107	2	216,810,561	86	3	86,788,145	70	1
4	1,208,496,088	163	11	228,055,005	155	3	47,217,984	151	1	72,407,456	149	2
5	1,897,178,850	159	13	438,199,307	161	4	409,677,530	144	7	180,706,133	111	4
6	1,234,639,592	165	10	463,019,682	136	5	364,860,997	145	6	84,290,039	158	2
7	127,971,592	191	1	1,535,258,499	128	14	-	-	-	78,953,600	159	2
8	-	-	-	337,185,224	151	3	163,882,621	89	2	-	-	-
[9, 10]	-	-	-	617,225,535	118	5	367,587,944	91	3	470,983,484	122	6
[11, 14]	-	-	-	-	-	-	1,777,686,879	80	12	114,627,136	104	1
[15, 20]	-	-	-	-	-	-	702,765,948	122	5	1,347,930,374	83	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	588,802,848	218	8	221,511,736	210	4	30,257,868	165	1	41,120,066	113	1
3	969,543,728	161	8	1,130,783,189	111	11	212,285,849	146	4	156,416,554	91	2
4	961,419,764	164	8	295,356,097	168	4	130,848,095	213	2	-	-	-
5	763,431,860	137	6	168,003,024	175	2	135,214,549	116	2	-	-	-
6	1,062,036,963	145	8	832,477,130	121	8	69,966,146	208	1	-	-	-
7	320,086,384	122	2	573,054,900	147	4	342,114,476	96	4	135,574,568	163	2
8	-	-	-	945,257,508	153	9	104,030,361	117	1	-	-	-
[9, 10]	-	-	-	-	-	-	804,885,640	99	7	103,972,863	105	1
[11, 14]	-	-	-	117,643,652	97	1	1,741,779,958	98	12	1,101,081,460	118	10
[15, 20]	-	-	-	-	-	-	654,517,084	42	3	3,744,436,246	60	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	728,306,887	184	8	330,452,729	199	3	242,941,399	156	4	45,507,098	167	1
3	811,508,465	168	6	-	-	-	414,164,934	153	7	153,147,317	124	2
4	787,761,091	197	7	394,791,310	180	5	40,530,386	177	1	-	-	-
5	819,989,222	140	5	682,795,472	162	6	141,453,348	124	2	68,473,288	165	2
6	1,000,178,947	113	6	353,648,387	75	2	344,111,799	157	4	94,550,397	132	1
7	777,708,850	124	5	78,970,643	171	1	190,047,008	173	3	70,055,731	68	1
8	-	-	-	659,531,501	181	6	487,641,742	147	5	-	-	-
[9, 10]	-	-	-	700,642,880	87	5	787,020,088	139	7	217,248,232	165	3
[11, 14]	-	-	-	574,628,974	86	3	3,120,394,846	94	19	1,009,169,999	115	7
[15, 20]	-	-	-	-	-	-	194,344,770	139	1	1,142,261,259	73	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	1,094,049,469	145	9	227,381,755	218	3	207,519,811	179	4	20,408,094	253	1
3	1,137,275,274	162	9	642,258,474	131	6	938,779,063	100	10	-	-	-
4	950,706,604	163	7	367,857,626	149	4	156,732,494	201	3	92,226,657	148	2
5	1,393,464,282	151	9	424,859,549	118	4	50,861,973	176	1	-	-	-
6	696,787,513	177	4	64,084,744	141	1	119,025,365	154	1	90,800,647	155	2
7	-	-	-	875,070,221	134	6	855,707,909	126	8	297,866,792	56	3
8	-	-	-	77,388,284	206	1	118,987,716	111	1	51,872,679	186	1
[9, 10]	-	-	-	845,685,859	104	5	795,232,303	152	7	435,563,095	116	4
[11, 14]	-	-	-	314,391,781	151	2	2,190,351,683	105	12	370,406,358	89	2
[15, 20]	-	-	-	-	-	-	971,893,288	89	4	2,033,724,771	44	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	1,121,781,399	162	9	587,849,849	172	8	97,532,344	94	1	119,138,700	169	2
3	1,715,475,222	116	12	528,790,182	118	5	296,995,517	189	4	150,061,039	79	2
4	1,360,753,419	145	8	403,017,911	191	4	344,669,081	205	5	42,993,935	177	1
5	1,836,954,805	135	10	825,086,638	131	6	389,119,184	139	5	-	-	-
6	1,811,490,699	157	10	403,320,659	104	3	313,728,237	131	4	59,114,793	119	1
7	339,501,279	117	2	1,143,434,871	138	7	274,232,094	126	3	-	-	-
8	-	-	-	571,608,613	111	4	-	-	-	74,318,404	148	1
[9, 10]	-	-	-	620,949,009	97	4	446,577,291	142	4	298,194,234	95	2
[11, 14]	-	-	-	375,392,607	122	2	1,263,132,466	123	7	1,611,084,106	62	10
[15, 20]	-	-	-	-	-	-	644,388,968	60	2	2,140,098,974	58	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	186,447,633	261	3	220,222,100	201	3	204,112,957	192	4	-	-	-
3	730,120,182	143	5	272,756,367	165	3	348,780,258	179	4	114,721,227	135	2
4	1,189,637,259	156	9	595,273,576	191	6	301,556,284	171	4	-	-	-
5	2,929,593,865	134	14	533,376,102	185	5	245,862,519	164	3	52,624,559	167	1
6	452,511,578	119	2	634,572,857	94	4	555,024,363	172	7	35,000,042	175	1
7	441,467,507	100	2	837,418,835	120	5	707,536,290	111	7	47,271,466	195	1
8	-	-	-	1,000,002,062	134	7	689,073,097	130	5	82,038,398	94	1
[9, 10]	-	-	-	970,519,547	134	5	986,830,702	122	7	309,954,881	142	3
[11, 14]	-	-	-	-	-	-	3,606,906,541	83	16	436,509,636	102	2
[15, 20]	-	-	-	-	-	-	398,489,757	37	1	5,393,878,777	70	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	1,143,897,349	165	11	632,564,960	181	8	466,110,935	91	6	207,200,074	139	3
3	771,887,687	156	5	414,393,186	125	3	313,469,105	159	4	53,998,323	138	1
4	1,732,243,317	168	11	644,776,728	124	4	271,521,833	169	3	160,783,147	102	2
5	2,462,691,735	150	12	858,766,373	194	6	576,343,973	131	5	156,593,309	105	2
6	1,857,841,862	149	8	792,796,973	134	6	170,991,614	173	2	107,459,202	115	1
7	240,003,060	147	1	1,271,274,648	134	8	357,015,405	161	4	57,639,667	169	1
8	-	-	-	759,962,520	113	4	99,963,540	111	1	-	-	-
[9, 10]	-	-	-	1,198,544,636	92	5	355,653,547	99	3	446,532,372	162	4
[11, 14]	-	-	-	-	-	-	2,324,634,962	80	9	905,434,859	75	4
[15, 20]	-	-	-	-	-	-	525,356,909	125	2	860,375,811	80	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	526,034,465	212	6	310,467,054	213	4	0	1011	1	157,080,875	128	2
3	1,085,237,140	126	6	1,371,193,581	111	8	388,852,095	113	4	-	-	-
4	2,122,050,744	160	8	1,000,267,524	182	8	181,542,661	238	2	207,821,732	100	2
5	2,381,109,486	143	10	886,178,828	148	7	413,628,337	136	5	166,775,297	160	3
6	2,400,265,273	146	10	701,658,736	133	5	126,213,569	197	1	168,281,765	111	2
7	-	-	-	1,060,013,789	166	6	579,040,794	125	6	-	-	-
8	-	-	-	1,395,895,259	138	7	513,343,409	127	4	113,776,805	117	1
[9, 10]	-	-	-	616,899,660	158	3	1,310,662,133	118	8	548,236,456	85	4
[11, 14]	-	-	-	-	-	-	3,528,505,813	50	12	1,133,761,244	76	5
[15, 20]	-	-	-	-	-	-	1,420,600,003	56	3	3,420,248,721	47	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	501,496,048	170	5	286,741,025	175	3	194,586,682	178	3	139,552,041	153	2
3	893,258,984	131	6	358,708,432	87	2	444,279,656	125	4	148,926,228	150	2
4	1,229,191,830	151	5	305,875,943	167	3	-	-	-	50,684,164	139	1
5	3,198,724,402	150	13	999,050,608	143	7	347,367,880	118	3	270,760,740	139	3
6	494,314,592	208	3	290,566,619	153	2	126,853,129	220	2	-	-	-
7	441,796,078	61	1	1,316,719,926	102	6	334,272,604	77	2	117,758,523	117	1
8	-	-	-	732,118,743	123	3	678,229,358	150	5	106,859,433	165	1
[9, 10]	-	-	-	1,380,841,885	97	4	915,560,016	91	4	579,068,800	69	3
[11, 14]	-	-	-	-	-	-	2,780,201,118	66	9	2,519,254,908	103	9
[15, 20]	-	-	-	-	-	-	348,012,463	105	1	1,543,469,694	423	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	844,382,448	184	9	548,329,576	192	7	104,319,509	201	2	197,919,460	63	2
3	1,154,653,467	138	4	1,164,879,067	116	9	282,513,657	135	2	87,579,439	161	2
4	1,428,721,673	140	7	-	-	-	232,801,507	144	2	65,926,003	126	1
5	2,365,930,250	126	10	592,652,556	103	4	297,072,526	163	2	188,021,129	171	3
6	1,691,869,866	117	5	992,362,516	180	6	596,092,339	102	3	163,489,536	176	2
7	461,881,506	165	2	570,875,050	119	2	139,033,437	189	1	-	-	-
8	-	-	-	2,484,698,903	101	10	1,190,715,632	140	6	175,175,245	105	1
[9, 10]	-	-	-	1,772,106,513	160	8	1,346,758,152	129	7	316,301,033	80	2
[11, 14]	-	-	-	350,925,894	91	1	2,871,133,890	89	9	784,952,114	137	3
[15, 20]	-	-	-	-	-	-	385,825,349	54	1	6,068,762,210	70	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	1,000,409,634	138	9	692,909,932	142	6	514,036,036	163	6	-	-	-
3	957,206,379	129	5	313,195,415	184	3	377,098,321	78	3	85,994,629	94	1
4	1,563,435,213	204	8	1,017,741,838	147	6	620,512,780	145	6	262,370,775	132	3
5	3,760,266,676	130	13	577,989,715	168	4	553,913,625	140	4	394,851,337	92	3
6	310,359,957	102	1	483,200,173	70	2	493,666,006	155	4	76,581,504	190	1
7	-	-	-	1,644,378,995	161	7	454,315,784	146	4	416,480,838	97	3
8	-	-	-	507,049,647	139	3	290,768,734	93	2	-	-	-
[9, 10]	-	-	-	2,633,891,126	121	9	1,799,356,181	107	6	397,676,742	136	3
[11, 14]	-	-	-	1,580,353,604	68	4	1,780,108,962	80	4	1,356,347,399	106	5
[15, 20]	-	-	-	-	-	-	1,301,022,676	70	2	4,880,105,258	66	9