Growth of Databases
Year	PubMed References	KFINDER Counts	PATENTS (application date)	PATENTS (priority date)	Aging References	GENBANK	Genbank (Human)	UNIGENE
12/31/1955
12/31/1956
12/31/1957
12/31/1958			72
12/31/1959		3	96	12
12/31/1960		5	129	30
12/31/1961		1	139	64
12/31/1962	21	21	188	74
12/31/1963	1,179	1,179	214	110
12/31/1964	7,581	7,581	340	260
12/31/1965	99,779	99,835	520	551
12/31/1966	174,530	174,553	908	1,332
12/31/1967	186,343	186,430	2,832	4,734
12/31/1968	203,375	203,520	15,994	10,770
12/31/1969	210,327	210,448	42,006	12,697
12/31/1970	211,642	211,644	52,520	13,918
12/31/1971	217,091	217,166	54,243	15,524
12/31/1972	221,226	221,303	55,745	19,676
12/31/1973	224,802	224,855	64,600	20,483
12/31/1974	228,184	227,932	66,999	19,358
12/31/1975	242,322	240,555	68,867	21,057
12/31/1976	259,307	245,616	70,817	22,233
12/31/1977	256,938	249,293	71,370	23,135
12/31/1978	264,954	256,115	71,032	24,491
12/31/1979	272,690	265,241	71,117	25,865
12/31/1980	269,344	263,281	72,109	25,878
12/31/1981	271,003	265,383	69,171	27,002
12/31/1982	282,024	275,325	70,751	27,376
12/31/1983	295,557	287,635	67,627	30,664
12/31/1984	304,232	297,292	73,665	34,281
12/31/1985	316,119	307,587	78,611	36,031
12/31/1986	328,808	320,501	82,177	38,169
12/31/1987	345,772	337,113	89,269	42,922
12/31/1988	362,873	354,106	98,377	44,893
12/31/1989	378,432	369,345	104,590	46,039
12/31/1990	386,293	376,549	108,603	45,393
12/31/1991	386,936	375,605	109,507	44,818
12/31/1992	388,978	377,028	112,980	45,361		10,682	4,830
12/31/1993	395,393	381,186	117,291	47,546		149,562	41,668
12/31/1994	403,807	381,672	132,797	47,653		88,017	27,478
12/31/1995	413,664	353,568	151,952	48,049		414,649	316,991
12/31/1996	420,387	285,102	149,615	39,840		473,554	265,292
12/31/1997	426,009		151,165	20,885		825,625	413,229
12/31/1998	438,885		81,961	4,748		870,444	466,868	40,348
12/31/1999	440,212		16,916	350
12/31/2000
Total:	10,537,019	8,851,574	2,649,882	934,272	0	2,832,533	1,536,356	40,348