Types	Distribution of types	Period	Total
Persons	Number	1997	155,117
Persons	Number	1996(2)	..
Persons	Number	1995	147,046
Persons	Number	1994(2)	..
Persons	Number	1993	121,098
Persons	Number	1992	118,749
Persons	Number	1991	108,594
Persons	Number	1990	101,546
Persons	Number	1989	92,390
Persons	Number	1988	87,066
Persons	Number	1987	77,022
Persons	Number	1986	70,122
Persons	Number	1985	63,109
Persons	Number	1984	61,074
Persons	Number	1983	57,321
Persons	Number	1982	56,472
Persons	Number	1981	55,297
Persons	Number	1980	54,731
Persons	Number	1979	42,734
Persons	Number	1978	41,918
Persons	Number	1977	..
Persons	Number	1976	..
Persons	Number	1975	..
Persons	Number	1974	26,227
Persons	Number	1973	23,968
Persons	Number	1972	26,441
Persons	Number	1971	24,677
Persons	Number	1970	18,423
Persons	Number	1969	16,333
Persons	Number	1968	..
Persons	Number	1967	13,815
Persons	Number	1966	..
Persons	Number	1965	..
Persons	Number	1964	11,566
Persons	Total in FTE(1)	1997	87,150
Persons	Total in FTE(1)	1996(2)	87,264
Persons	Total in FTE(1)	1995	79,987
Persons	Total in FTE(1)	1994(2)	80,399
Persons	Total in FTE(1)	1993	75,734
Persons	Total in FTE(1)	1992	73,320
Persons	Total in FTE(1)	1991	72,406
Persons	Total in FTE(1)	1990	69,684
Persons	Total in FTE(1)	1989	63,155
Persons	Total in FTE(1)	1988	54,807
Persons	Total in FTE(1)	1987	48,486
Persons	Total in FTE(1)	1986	45,261
Persons	Total in FTE(1)	1985	40,654
Persons	Total in FTE(1)	1984	39,287
Persons	Total in FTE(1)	1983	36,171
Persons	Total in FTE(1)	1982	35,531
Persons	Total in FTE(1)	1981	36,221
Persons	Total in FTE(1)	1980	35,496
Persons	Total in FTE(1)	1979	30,164
Persons	Total in FTE(1)	1978	29,685
Persons	Total in FTE(1)	1977	..
Persons	Total in FTE(1)	1976	..
Persons	Total in FTE(1)	1975	..
Persons	Total in FTE(1)	1974	23,921
Persons	Total in FTE(1)	1973	21,221
Persons	Total in FTE(1)	1972	23,612
Persons	Total in FTE(1)	1971	21,609
Persons	Total in FTE(1)	1970	16,311
Persons	Total in FTE(1)	1969	14,638
Persons	Total in FTE(1)	1968	..
Persons	Total in FTE(1)	1967	12,934
Persons	Total in FTE(1)	1966	..
Persons	Total in FTE(1)	1965	..
Persons	Total in FTE(1)	1964	..
Persons	Yearly growth rate	1997	1.00
Persons	Yearly growth rate	1996(2)	1.09
Persons	Yearly growth rate	1995	0.99
Persons	Yearly growth rate	1994(2)	1.06
Persons	Yearly growth rate	1993	1.03
Persons	Yearly growth rate	1992	1.01
Persons	Yearly growth rate	1991	1.04
Persons	Yearly growth rate	1990	1.10
Persons	Yearly growth rate	1989	1.15
Persons	Yearly growth rate	1988	1.13
Persons	Yearly growth rate	1987	1.07
Persons	Yearly growth rate	1986	1.11
Persons	Yearly growth rate	1985	1.03
Persons	Yearly growth rate	1984	1.09
Persons	Yearly growth rate	1983	1.02
Persons	Yearly growth rate	1982	0.98
Persons	Yearly growth rate	1981	1.02
Persons	Yearly growth rate	1980	1.18
Persons	Yearly growth rate	1979	1.02
Persons	Yearly growth rate	1978	..
Persons	Yearly growth rate	1977	..
Persons	Yearly growth rate	1976	..
Persons	Yearly growth rate	1975	..
Persons	Yearly growth rate	1974	1.13
Persons	Yearly growth rate	1973	0.89
Persons	Yearly growth rate	1972	1.09
Persons	Yearly growth rate	1971	1.32
Persons	Yearly growth rate	1970	1.12
Persons	Yearly growth rate	1969	..
Persons	Yearly growth rate	1968	..
Persons	Yearly growth rate	1967	..
Persons	Yearly growth rate	1966	..
Persons	Yearly growth rate	1965	..
Persons	Yearly growth rate	1964	..
Persons	So much per thousand as regards the A.P.	1997	5.4
Persons	So much per thousand as regards the A.P.	1996(2)	5.5
Persons	So much per thousand as regards the A.P.	1995	5.1
Persons	So much per thousand as regards the A.P.	1994(2)	5.1
Persons	So much per thousand as regards the A.P.	1993	4.8
Persons	So much per thousand as regards the A.P.	1992	4.8
Persons	So much per thousand as regards the A.P.	1991	4.7
Persons	So much per thousand as regards the A.P.	1990	4.5
Persons	So much per thousand as regards the A.P.	1989	4.2
Persons	So much per thousand as regards the A.P.	1988	3.7
Persons	So much per thousand as regards the A.P.	1987	3.3
Persons	So much per thousand as regards the A.P.	1986	3.2
Persons	So much per thousand as regards the A.P.	1985	3.0
Persons	So much per thousand as regards the A.P.	1984	2.9
Persons	So much per thousand as regards the A.P.	1983	2.7
Persons	So much per thousand as regards the A.P.	1982	2.7
Persons	So much per thousand as regards the A.P.	1981	2.8
Persons	So much per thousand as regards the A.P.	1980	2.7
Persons	So much per thousand as regards the A.P.	1979	2.3
Persons	So much per thousand as regards the A.P.	1978	2.2
Persons	So much per thousand as regards the A.P.	1977	..
Persons	So much per thousand as regards the A.P.	1976	..
Persons	So much per thousand as regards the A.P.	1975	..
Persons	So much per thousand as regards the A.P.	1974	1.7
Persons	So much per thousand as regards the A.P.	1973	1.6
Persons	So much per thousand as regards the A.P.	1972	1.8
Persons	So much per thousand as regards the A.P.	1971	1.7
Persons	So much per thousand as regards the A.P.	1970	1.3
Persons	So much per thousand as regards the A.P.	1969	..
Persons	So much per thousand as regards the A.P.	1968	..
Persons	So much per thousand as regards the A.P.	1967	..
Persons	So much per thousand as regards the A.P.	1966	..
Persons	So much per thousand as regards the A.P.	1965	..
Persons	So much per thousand as regards the A.P.	1964	..
Researchers	Number	1997	103,905
Researchers	Number	1996(2)	..
Researchers	Number	1995	100,070
Researchers	Number	1994(2)	..
Researchers	Number	1993	80,113
Researchers	Number	1992	77,430
Researchers	Number	1991	73,551
Researchers	Number	1990	66,582
Researchers	Number	1989	59,592
Researchers	Number	1988	56,261
Researchers	Number	1987	49,007
Researchers	Number	1986	45,255
Researchers	Number	1985	40,848
Researchers	Number	1984	39,607
Researchers	Number	1983	38,175
Researchers	Number	1982	37,122
Researchers	Number	1981	36,564
Researchers	Number	1980	35,062
Researchers	Number	1979	24,667
Researchers	Number	1978	24,105
Researchers	Number	1977	..
Researchers	Number	1976	..
Researchers	Number	1975	..
Researchers	Number	1974	9,609
Researchers	Number	1973	8,668
Researchers	Number	1972	10,692
Researchers	Number	1971	9,925
Researchers	Number	1970	7,000
Researchers	Number	1969	..
Researchers	Number	1968	..
Researchers	Number	1967	4,625
Researchers	Number	1966	..
Researchers	Number	1965	..
Researchers	Number	1964	4,203
Researchers	Total in FTE(1)	1997	53,883
Researchers	Total in FTE(1)	1996(2)	51,633
Researchers	Total in FTE(1)	1995	47,342
Researchers	Total in FTE(1)	1994(2)	47,867
Researchers	Total in FTE(1)	1993	43,367
Researchers	Total in FTE(1)	1992	41,681
Researchers	Total in FTE(1)	1991	40,642
Researchers	Total in FTE(1)	1990	37,676
Researchers	Total in FTE(1)	1989	32,914
Researchers	Total in FTE(1)	1988	31,170
Researchers	Total in FTE(1)	1987	26,463
Researchers	Total in FTE(1)	1986	24,525
Researchers	Total in FTE(1)	1985	21,455
Researchers	Total in FTE(1)	1984	20,506
Researchers	Total in FTE(1)	1983	19,453
Researchers	Total in FTE(1)	1982	18,782
Researchers	Total in FTE(1)	1981	19,268
Researchers	Total in FTE(1)	1980	18,323
Researchers	Total in FTE(1)	1979	13,457
Researchers	Total in FTE(1)	1978	13,050
Researchers	Total in FTE(1)	1977	..
Researchers	Total in FTE(1)	1976	..
Researchers	Total in FTE(1)	1975	..
Researchers	Total in FTE(1)	1974	8,492
Researchers	Total in FTE(1)	1973	7,163
Researchers	Total in FTE(1)	1972	8,985
Researchers	Total in FTE(1)	1971	8,014
Researchers	Total in FTE(1)	1970	5,898
Researchers	Total in FTE(1)	1969	6,071
Researchers	Total in FTE(1)	1968	..
Researchers	Total in FTE(1)	1967	4,181
Researchers	Total in FTE(1)	1966	..
Researchers	Total in FTE(1)	1965	..
Researchers	Total in FTE(1)	1964	..
Researchers	Yearly growth rate	1997	1.04
Researchers	Yearly growth rate	1996(2)	1.09
Researchers	Yearly growth rate	1995	0.99
Researchers	Yearly growth rate	1994(2)	1.10
Researchers	Yearly growth rate	1993	1.04
Researchers	Yearly growth rate	1992	1.03
Researchers	Yearly growth rate	1991	1.08
Researchers	Yearly growth rate	1990	1.14
Researchers	Yearly growth rate	1989	1.06
Researchers	Yearly growth rate	1988	1.18
Researchers	Yearly growth rate	1987	1.08
Researchers	Yearly growth rate	1986	1.14
Researchers	Yearly growth rate	1985	1.05
Researchers	Yearly growth rate	1984	1.05
Researchers	Yearly growth rate	1983	1.04
Researchers	Yearly growth rate	1982	0.97
Researchers	Yearly growth rate	1981	1.05
Researchers	Yearly growth rate	1980	1.36
Researchers	Yearly growth rate	1979	1.03
Researchers	Yearly growth rate	1978	..
Researchers	Yearly growth rate	1977	..
Researchers	Yearly growth rate	1976	..
Researchers	Yearly growth rate	1975	..
Researchers	Yearly growth rate	1974	1.19
Researchers	Yearly growth rate	1973	0.79
Researchers	Yearly growth rate	1972	1.12
Researchers	Yearly growth rate	1971	1.36
Researchers	Yearly growth rate	1970	1.15
Researchers	Yearly growth rate	1969	5,188.00
Researchers	Yearly growth rate	1968	..
Researchers	Yearly growth rate	1967	..
Researchers	Yearly growth rate	1966	..
Researchers	Yearly growth rate	1965	..
Researchers	Yearly growth rate	1964	..
Researchers	So much per thousand as regards the A.P.	1997	3.3
Researchers	So much per thousand as regards the A.P.	1996(2)	3.2
Researchers	So much per thousand as regards the A.P.	1995	3.0
Researchers	So much per thousand as regards the A.P.	1994(2)	3.1
Researchers	So much per thousand as regards the A.P.	1993	2.8
Researchers	So much per thousand as regards the A.P.	1992	2.7
Researchers	So much per thousand as regards the A.P.	1991	2.7
Researchers	So much per thousand as regards the A.P.	1990	2.5
Researchers	So much per thousand as regards the A.P.	1989	2.2
Researchers	So much per thousand as regards the A.P.	1988	2.1
Researchers	So much per thousand as regards the A.P.	1987	1.8
Researchers	So much per thousand as regards the A.P.	1986	1.8
Researchers	So much per thousand as regards the A.P.	1985	1.6
Researchers	So much per thousand as regards the A.P.	1984	1.5
Researchers	So much per thousand as regards the A.P.	1983	1.4
Researchers	So much per thousand as regards the A.P.	1982	1.4
Researchers	So much per thousand as regards the A.P.	1981	1.5
Researchers	So much per thousand as regards the A.P.	1980	1.4
Researchers	So much per thousand as regards the A.P.	1979	1.0
Researchers	So much per thousand as regards the A.P.	1978	1.0
Researchers	So much per thousand as regards the A.P.	1977	..
Researchers	So much per thousand as regards the A.P.	1976	..
Researchers	So much per thousand as regards the A.P.	1975	..
Researchers	So much per thousand as regards the A.P.	1974	0.6
Researchers	So much per thousand as regards the A.P.	1973	0.5
Researchers	So much per thousand as regards the A.P.	1972	0.7
Researchers	So much per thousand as regards the A.P.	1971	0.6
Researchers	So much per thousand as regards the A.P.	1970	0.5
Researchers	So much per thousand as regards the A.P.	1969	..
Researchers	So much per thousand as regards the A.P.	1968	..
Researchers	So much per thousand as regards the A.P.	1967	..
Researchers	So much per thousand as regards the A.P.	1966	..
Researchers	So much per thousand as regards the A.P.	1965	..
Researchers	So much per thousand as regards the A.P.	1964	..