Field or discipline	Period	Total
Total	1997	672,017
Total	1996(2)	641,024
Total	1995	590,688
Total	1994(2)	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(1)	155,341
Total	1984(1)	126,199
Total	1983(1)	107,664
Total	1982(1)	96,002
Total	1981(1)	72,813
Total	1980(1)	65,090
Exact and natural sciences: Total	1997	134,994
Exact and natural sciences: Total	1996(2)	133,075
Exact and natural sciences: Total	1995	116,745
Exact and natural sciences: Total	1994(2)	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(1)	18,000
Exact and natural sciences: Total	1984(1)	14,239
Exact and natural sciences: Total	1983(1)	13,085
Exact and natural sciences: Total	1982(1)	10,749
Exact and natural sciences: Total	1981(1)	8,139
Exact and natural sciences: Total	1980(1)	6,137
Exact and natural sciences: %	1997	20.1
Exact and natural sciences: %	1996(2)	20.8
Exact and natural sciences: %	1995	19.8
Exact and natural sciences: %	1994(2)	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(1)	11.6
Exact and natural sciences: %	1984(1)	11.3
Exact and natural sciences: %	1983(1)	12.1
Exact and natural sciences: %	1982(1)	11.2
Exact and natural sciences: %	1981(1)	11.2
Exact and natural sciences: %	1980(1)	9.4
Engineering and technology: Total	1997	338,098
Engineering and technology: Total	1996(2)	322,468
Engineering and technology: Total	1995	302,542
Engineering and technology: Total	1994(2)	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(1)	94,856
Engineering and technology: Total	1984(1)	69,463
Engineering and technology: Total	1983(1)	63,084
Engineering and technology: Total	1982(1)	56,738
Engineering and technology: Total	1981(1)	41,410
Engineering and technology: Total	1980(1)	40,071
Engineering and technology: %	1997	50.3
Engineering and technology: %	1996(2)	50.3
Engineering and technology: %	1995	51.2
Engineering and technology: %	1994(2)	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(1)	61.0
Engineering and technology: %	1984(1)	55.0
Engineering and technology: %	1983(1)	58.6
Engineering and technology: %	1982(1)	59.1
Engineering and technology: %	1981(1)	56.9
Engineering and technology: %	1980(1)	61.6
Medical sciences: Total	1997	92,398
Medical sciences: Total	1996(2)	84,288
Medical sciences: Total	1995	81,319
Medical sciences: Total	1994(2)	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(1)	15,395
Medical sciences: Total	1984(1)	18,634
Medical sciences: Total	1983(1)	12,228
Medical sciences: Total	1982(1)	11,853
Medical sciences: Total	1981(1)	9,043
Medical sciences: Total	1980(1)	7,114
Medical sciences: %	1997	13.7
Medical sciences: %	1996(2)	13.1
Medical sciences: %	1995	13.8
Medical sciences: %	1994(2)	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(1)	9.9
Medical sciences: %	1984(1)	14.8
Medical sciences: %	1983(1)	11.4
Medical sciences: %	1982(1)	12.4
Medical sciences: %	1981(1)	12.4
Medical sciences: %	1980(1)	11.0
Agricultural Sciences: Total	1997	49,456
Agricultural Sciences: Total	1996(2)	47,557
Agricultural Sciences: Total	1995	39,943
Agricultural Sciences: Total	1994(2)	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(1)	15,318
Agricultural Sciences: Total	1984(1)	13,180
Agricultural Sciences: Total	1983(1)	9,935
Agricultural Sciences: Total	1982(1)	8,910
Agricultural Sciences: Total	1981(1)	7,218
Agricultural Sciences: Total	1980(1)	6,075
Agricultural Sciences: %	1997	7.4
Agricultural Sciences: %	1996(2)	7.4
Agricultural Sciences: %	1995	6.8
Agricultural Sciences: %	1994(2)	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(1)	9.9
Agricultural Sciences: %	1984(1)	10.4
Agricultural Sciences: %	1983(1)	9.2
Agricultural Sciences: %	1982(1)	9.3
Agricultural Sciences: %	1981(1)	9.9
Agricultural Sciences: %	1980(1)	9.3
Social sciences and humanities: Total	1997	57,071
Social sciences and humanities: Total	1996(2)	53,636
Social sciences and humanities: Total	1995	50,139
Social sciences and humanities: Total	1994(2)	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(1)	11,772
Social sciences and humanities: Total	1984(1)	10,683
Social sciences and humanities: Total	1983(1)	9,332
Social sciences and humanities: Total	1982(1)	7,752
Social sciences and humanities: Total	1981(1)	7,003
Social sciences and humanities: Total	1980(1)	5,693
Social sciences and humanities: %	1997	8.5
Social sciences and humanities: %	1996(2)	8.4
Social sciences and humanities: %	1995	8.5
Social sciences and humanities: %	1994(2)	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(1)	7.6
Social sciences and humanities: %	1984(1)	8.5
Social sciences and humanities: %	1983(1)	8.7
Social sciences and humanities: %	1982(1)	8.0
Social sciences and humanities: %	1981(1)	9.6
Social sciences and humanities: %	1980(1)	8.7