Field or discipline	Period	Total
Total	1997	672,017
Total	1996(1)	641,024
Total	1995	590,688
Total	1994(1)	548,154
Total	1993	557,403
Total	1992	539,919
Total	1991	479,372
Total	1990	425,829
Total	1989	339,324
Total	1988	287,689
Total	1987	230,509
Total	1986	197,676
Total	1985	155,341
Total	1984	126,199
Total	1983	107,664
Total	1982	96,002
Total	1981	72,813
Total	1980	65,090
Total	1979	48,668
Total	1978	39,607
Total	1977	..
Total	1976	25,080
Total	1975	21,282
Total	1974	15,779
Total	1973	12,381
Total	1972	9,858
Total	1971	8,104
Total	1970	5,593
Total	1969	4,621
Total	1968	..
Total	1967	3,516
Total	1966	..
Total	1965	..
Total	1964	1,673
Exact and natural sciences: Total	1997	134,994
Exact and natural sciences: Total	1996(1)	133,075
Exact and natural sciences: Total	1995	116,745
Exact and natural sciences: Total	1994(1)	102,505
Exact and natural sciences: Total	1993	74,991
Exact and natural sciences: Total	1992	71,290
Exact and natural sciences: Total	1991	51,330
Exact and natural sciences: Total	1990	45,132
Exact and natural sciences: Total	1989	37,734
Exact and natural sciences: Total	1988	28,524
Exact and natural sciences: Total	1987	27,142
Exact and natural sciences: Total	1986	22,988
Exact and natural sciences: Total	1985	18,000
Exact and natural sciences: Total	1984	14,239
Exact and natural sciences: Total	1983	13,085
Exact and natural sciences: Total	1982	10,749
Exact and natural sciences: Total	1981	8,139
Exact and natural sciences: Total	1980	6,137
Exact and natural sciences: Total	1979	5,099
Exact and natural sciences: Total	1978	4,943
Exact and natural sciences: Total	1977	..
Exact and natural sciences: Total	1976	..
Exact and natural sciences: Total	1975	..
Exact and natural sciences: Total	1974	891
Exact and natural sciences: Total	1973	866
Exact and natural sciences: Total	1972	1,917
Exact and natural sciences: Total	1971	1,468
Exact and natural sciences: Total	1970	1,169
Exact and natural sciences: Total	1969	955
Exact and natural sciences: Total	1968	..
Exact and natural sciences: Total	1967	..
Exact and natural sciences: Total	1966	..
Exact and natural sciences: Total	1965	..
Exact and natural sciences: Total	1964	..
Exact and natural sciences: %	1997	20.1
Exact and natural sciences: %	1996(1)	20.8
Exact and natural sciences: %	1995	19.8
Exact and natural sciences: %	1994(1)	18.7
Exact and natural sciences: %	1993	13.5
Exact and natural sciences: %	1992	13.2
Exact and natural sciences: %	1991	10.7
Exact and natural sciences: %	1990	10.6
Exact and natural sciences: %	1989	11.1
Exact and natural sciences: %	1988	9.9
Exact and natural sciences: %	1987	11.8
Exact and natural sciences: %	1986	11.6
Exact and natural sciences: %	1985	11.6
Exact and natural sciences: %	1984	11.3
Exact and natural sciences: %	1983	12.1
Exact and natural sciences: %	1982	11.2
Exact and natural sciences: %	1981	11.2
Exact and natural sciences: %	1980	9.4
Exact and natural sciences: %	1979	10.5
Exact and natural sciences: %	1978	12.5
Exact and natural sciences: %	1977	..
Exact and natural sciences: %	1976	..
Exact and natural sciences: %	1975	..
Exact and natural sciences: %	1974	5.6
Exact and natural sciences: %	1973	7.0
Exact and natural sciences: %	1972	19.4
Exact and natural sciences: %	1971	18.1
Exact and natural sciences: %	1970	20.9
Exact and natural sciences: %	1969	20.7
Exact and natural sciences: %	1968	..
Exact and natural sciences: %	1967	..
Exact and natural sciences: %	1966	..
Exact and natural sciences: %	1965	..
Exact and natural sciences: %	1964	..
Engineering and technology: Total	1997	338,098
Engineering and technology: Total	1996(1)	322,468
Engineering and technology: Total	1995	302,542
Engineering and technology: Total	1994(1)	285,932
Engineering and technology: Total	1993	301,377
Engineering and technology: Total	1992	306,141
Engineering and technology: Total	1991	288,192
Engineering and technology: Total	1990	262,330
Engineering and technology: Total	1989	205,326
Engineering and technology: Total	1988	177,523
Engineering and technology: Total	1987	135,936
Engineering and technology: Total	1986	121,224
Engineering and technology: Total	1985	94,856
Engineering and technology: Total	1984	69,463
Engineering and technology: Total	1983	63,084
Engineering and technology: Total	1982	56,738
Engineering and technology: Total	1981	41,410
Engineering and technology: Total	1980	40,071
Engineering and technology: Total	1979	29,607
Engineering and technology: Total	1978	22,909
Engineering and technology: Total	1977	..
Engineering and technology: Total	1976	..
Engineering and technology: Total	1975	..
Engineering and technology: Total	1974	11,019
Engineering and technology: Total	1973	8,463
Engineering and technology: Total	1972	5,655
Engineering and technology: Total	1971	4,835
Engineering and technology: Total	1970	3,483
Engineering and technology: Total	1969	2,909
Engineering and technology: Total	1968	..
Engineering and technology: Total	1967	..
Engineering and technology: Total	1966	..
Engineering and technology: Total	1965	..
Engineering and technology: Total	1964	..
Engineering and technology: %	1997	50.3
Engineering and technology: %	1996(1)	50.3
Engineering and technology: %	1995	51.2
Engineering and technology: %	1994(1)	52.2
Engineering and technology: %	1993	54.1
Engineering and technology: %	1992	56.7
Engineering and technology: %	1991	60.1
Engineering and technology: %	1990	61.6
Engineering and technology: %	1989	60.5
Engineering and technology: %	1988	61.7
Engineering and technology: %	1987	59.0
Engineering and technology: %	1986	61.3
Engineering and technology: %	1985	61.0
Engineering and technology: %	1984	55.0
Engineering and technology: %	1983	58.6
Engineering and technology: %	1982	59.1
Engineering and technology: %	1981	56.9
Engineering and technology: %	1980	61.6
Engineering and technology: %	1979	60.8
Engineering and technology: %	1978	57.8
Engineering and technology: %	1977	..
Engineering and technology: %	1976	..
Engineering and technology: %	1975	..
Engineering and technology: %	1974	69.8
Engineering and technology: %	1973	68.4
Engineering and technology: %	1972	57.4
Engineering and technology: %	1971	59.7
Engineering and technology: %	1970	62.3
Engineering and technology: %	1969	63.0
Engineering and technology: %	1968	..
Engineering and technology: %	1967	..
Engineering and technology: %	1966	..
Engineering and technology: %	1965	..
Engineering and technology: %	1964	..
Medical sciences: Total	1997	92,398
Medical sciences: Total	1996(1)	84,288
Medical sciences: Total	1995	81,319
Medical sciences: Total	1994(1)	71,050
Medical sciences: Total	1993	74,850
Medical sciences: Total	1992	70,196
Medical sciences: Total	1991	62,184
Medical sciences: Total	1990	51,618
Medical sciences: Total	1989	40,154
Medical sciences: Total	1988	34,408
Medical sciences: Total	1987	28,221
Medical sciences: Total	1986	20,296
Medical sciences: Total	1985	15,395
Medical sciences: Total	1984	18,634
Medical sciences: Total	1983	12,228
Medical sciences: Total	1982	11,853
Medical sciences: Total	1981	9,043
Medical sciences: Total	1980	7,114
Medical sciences: Total	1979	5,471
Medical sciences: Total	1978	4,555
Medical sciences: Total	1977	..
Medical sciences: Total	1976	..
Medical sciences: Total	1975	..
Medical sciences: Total	1974	1,780
Medical sciences: Total	1973	1,379
Medical sciences: Total	1972	1,121
Medical sciences: Total	1971	856
Medical sciences: Total	1970	552
Medical sciences: Total	1969	448
Medical sciences: Total	1968	..
Medical sciences: Total	1967	..
Medical sciences: Total	1966	..
Medical sciences: Total	1965	..
Medical sciences: Total	1964	..
Medical sciences: %	1997	13.7
Medical sciences: %	1996(1)	13.1
Medical sciences: %	1995	13.8
Medical sciences: %	1994(1)	13.0
Medical sciences: %	1993	13.4
Medical sciences: %	1992	13.0
Medical sciences: %	1991	13.0
Medical sciences: %	1990	12.1
Medical sciences: %	1989	11.8
Medical sciences: %	1988	12.0
Medical sciences: %	1987	12.2
Medical sciences: %	1986	10.3
Medical sciences: %	1985	9.9
Medical sciences: %	1984	14.8
Medical sciences: %	1983	11.4
Medical sciences: %	1982	12.4
Medical sciences: %	1981	12.4
Medical sciences: %	1980	11.0
Medical sciences: %	1979	11.2
Medical sciences: %	1978	11.5
Medical sciences: %	1977	..
Medical sciences: %	1976	..
Medical sciences: %	1975	..
Medical sciences: %	1974	11.3
Medical sciences: %	1973	11.1
Medical sciences: %	1972	11.4
Medical sciences: %	1971	10.6
Medical sciences: %	1970	9.9
Medical sciences: %	1969	9.7
Medical sciences: %	1968	..
Medical sciences: %	1967	..
Medical sciences: %	1966	..
Medical sciences: %	1965	..
Medical sciences: %	1964	..
Agricultural Sciences: Total	1997	49,456
Agricultural Sciences: Total	1996(1)	47,557
Agricultural Sciences: Total	1995	39,943
Agricultural Sciences: Total	1994(1)	37,513
Agricultural Sciences: Total	1993	38,039
Agricultural Sciences: Total	1992	36,576
Agricultural Sciences: Total	1991	36,882
Agricultural Sciences: Total	1990	33,617
Agricultural Sciences: Total	1989	28,895
Agricultural Sciences: Total	1988	26,669
Agricultural Sciences: Total	1987	23,352
Agricultural Sciences: Total	1986	18,683
Agricultural Sciences: Total	1985	15,318
Agricultural Sciences: Total	1984	13,180
Agricultural Sciences: Total	1983	9,935
Agricultural Sciences: Total	1982	8,910
Agricultural Sciences: Total	1981	7,218
Agricultural Sciences: Total	1980	6,075
Agricultural Sciences: Total	1979	4,957
Agricultural Sciences: Total	1978	4,178
Agricultural Sciences: Total	1977	..
Agricultural Sciences: Total	1976	..
Agricultural Sciences: Total	1975	..
Agricultural Sciences: Total	1974	1,439
Agricultural Sciences: Total	1973	1,170
Agricultural Sciences: Total	1972	785
Agricultural Sciences: Total	1971	485
Agricultural Sciences: Total	1970	274
Agricultural Sciences: Total	1969	220
Agricultural Sciences: Total	1968	..
Agricultural Sciences: Total	1967	..
Agricultural Sciences: Total	1966	..
Agricultural Sciences: Total	1965	..
Agricultural Sciences: Total	1964	..
Agricultural Sciences: %	1997	7.4
Agricultural Sciences: %	1996(1)	7.4
Agricultural Sciences: %	1995	6.8
Agricultural Sciences: %	1994(1)	6.8
Agricultural Sciences: %	1993	6.8
Agricultural Sciences: %	1992	6.8
Agricultural Sciences: %	1991	7.7
Agricultural Sciences: %	1990	7.9
Agricultural Sciences: %	1989	8.5
Agricultural Sciences: %	1988	9.3
Agricultural Sciences: %	1987	10.1
Agricultural Sciences: %	1986	9.5
Agricultural Sciences: %	1985	9.9
Agricultural Sciences: %	1984	10.4
Agricultural Sciences: %	1983	9.2
Agricultural Sciences: %	1982	9.3
Agricultural Sciences: %	1981	9.9
Agricultural Sciences: %	1980	9.3
Agricultural Sciences: %	1979	10.2
Agricultural Sciences: %	1978	10.5
Agricultural Sciences: %	1977	..
Agricultural Sciences: %	1976	..
Agricultural Sciences: %	1975	..
Agricultural Sciences: %	1974	9.1
Agricultural Sciences: %	1973	9.4
Agricultural Sciences: %	1972	8.0
Agricultural Sciences: %	1971	6.0
Agricultural Sciences: %	1970	4.9
Agricultural Sciences: %	1969	4.8
Agricultural Sciences: %	1968	..
Agricultural Sciences: %	1967	..
Agricultural Sciences: %	1966	..
Agricultural Sciences: %	1965	..
Agricultural Sciences: %	1964	..
Social sciences and humanities: Total	1997	57,071
Social sciences and humanities: Total	1996(1)	53,636
Social sciences and humanities: Total	1995	50,139
Social sciences and humanities: Total	1994(1)	51,154
Social sciences and humanities: Total	1993	68,146
Social sciences and humanities: Total	1992	55,716
Social sciences and humanities: Total	1991	40,784
Social sciences and humanities: Total	1990	33,132
Social sciences and humanities: Total	1989	27,215
Social sciences and humanities: Total	1988	20,565
Social sciences and humanities: Total	1987	15,858
Social sciences and humanities: Total	1986	14,485
Social sciences and humanities: Total	1985	11,772
Social sciences and humanities: Total	1984	10,683
Social sciences and humanities: Total	1983	9,332
Social sciences and humanities: Total	1982	7,752
Social sciences and humanities: Total	1981	7,003
Social sciences and humanities: Total	1980	5,693
Social sciences and humanities: Total	1979	3,534
Social sciences and humanities: Total	1978	3,022
Social sciences and humanities: Total	1977	..
Social sciences and humanities: Total	1976	..
Social sciences and humanities: Total	1975	..
Social sciences and humanities: Total	1974	650
Social sciences and humanities: Total	1973	503
Social sciences and humanities: Total	1972	380
Social sciences and humanities: Total	1971	460
Social sciences and humanities: Total	1970	115
Social sciences and humanities: Total	1969	89
Social sciences and humanities: Total	1968	..
Social sciences and humanities: Total	1967	..
Social sciences and humanities: Total	1966	..
Social sciences and humanities: Total	1965	..
Social sciences and humanities: Total	1964	..
Social sciences and humanities: %	1997	8.5
Social sciences and humanities: %	1996(1)	8.4
Social sciences and humanities: %	1995	8.5
Social sciences and humanities: %	1994(1)	9.3
Social sciences and humanities: %	1993	12.2
Social sciences and humanities: %	1992	10.3
Social sciences and humanities: %	1991	8.5
Social sciences and humanities: %	1990	7.8
Social sciences and humanities: %	1989	8.0
Social sciences and humanities: %	1988	7.1
Social sciences and humanities: %	1987	6.9
Social sciences and humanities: %	1986	7.3
Social sciences and humanities: %	1985	7.6
Social sciences and humanities: %	1984	8.5
Social sciences and humanities: %	1983	8.7
Social sciences and humanities: %	1982	8.0
Social sciences and humanities: %	1981	9.6
Social sciences and humanities: %	1980	8.7
Social sciences and humanities: %	1979	7.3
Social sciences and humanities: %	1978	7.6
Social sciences and humanities: %	1977	..
Social sciences and humanities: %	1976	..
Social sciences and humanities: %	1975	..
Social sciences and humanities: %	1974	4.1
Social sciences and humanities: %	1973	4.1
Social sciences and humanities: %	1972	3.9
Social sciences and humanities: %	1971	5.7
Social sciences and humanities: %	1970	2.1
Social sciences and humanities: %	1969	1.9
Social sciences and humanities: %	1968	..
Social sciences and humanities: %	1967	..
Social sciences and humanities: %	1966	..
Social sciences and humanities: %	1965	..
Social sciences and humanities: %	1964	..