Sectors	Period	Total
Total	2000	5,460
Total	1999	4,995
Total	1998	4,715
Total	1997	4,039
Total	1996	3,853
Total	1995	3,550
Total	1994	3,511
Total	1993	3,350
Total	1992	3,245
Total	1991	2,881
Total	1990	2,559
Total	1989	2,039
Total	1988	1,729
Total	1987	1,385
Total	1986	1,188
Total	1985	934
Total	1984	758
Total	1983	647
Total	1982	577
Total	1981	438
Total	1980	391
Total	1979	293
Total	1978	238
Total	1977	..
Total	1976	151
Total	1975	128
Total	1974	95
Total	1973	74
Total	1972	59
Total	1971	49
Total	1970	34
Total	1969	28
Total	1968	..
Total	1967	21
Total	1966	..
Total	1965	..
Total	1964	10
Public Administration: Total	2000	902
Public Administration: Total	1999	843
Public Administration: Total	1998	767
Public Administration: Total	1997	702
Public Administration: Total	1996	705
Public Administration: Total	1995	661
Public Administration: Total	1994	682
Public Administration: Total	1993	670
Public Administration: Total	1992	649
Public Administration: Total	1991	613
Public Administration: Total	1990	544
Public Administration: Total	1989	464
Public Administration: Total	1988	401
Public Administration: Total	1987	350
Public Administration: Total	1986	296
Public Administration: Total	1985	226
Public Administration: Total	1984	197
Public Administration: Total	1983	185
Public Administration: Total	1982	166
Public Administration: Total	1981	138
Public Administration: Total	1980	116
Public Administration: Total	1979	97
Public Administration: Total	1978	74
Public Administration: Total	1977	..
Public Administration: Total	1976	54
Public Administration: Total	1975	46
Public Administration: Total	1974	34
Public Administration: Total	1973	30
Public Administration: Total	1972	28
Public Administration: Total	1971	22
Public Administration: Total	1970	18
Public Administration: Total	1969	15
Public Administration: Total	1968	..
Public Administration: Total	1967	11
Public Administration: Total	1966	..
Public Administration: Total	1965	..
Public Administration: Total	1964	7
Public Administration: %	2000	16.5
Public Administration: %	1999	16.9
Public Administration: %	1998	16.3
Public Administration: %	1997	17.4
Public Administration: %	1996	18.3
Public Administration: %	1995	18.6
Public Administration: %	1994	20.7
Public Administration: %	1993	20.0
Public Administration: %	1992	20.0
Public Administration: %	1991	21.3
Public Administration: %	1990	21.3
Public Administration: %	1989	22.7
Public Administration: %	1988	23.2
Public Administration: %	1987	25.2
Public Administration: %	1986	24.9
Public Administration: %	1985	24.2
Public Administration: %	1984	26.0
Public Administration: %	1983	28.6
Public Administration: %	1982	28.8
Public Administration: %	1981	31.6
Public Administration: %	1980	29.7
Public Administration: %	1979	33.2
Public Administration: %	1978	30.9
Public Administration: %	1977	..
Public Administration: %	1976	35.8
Public Administration: %	1975	35.7
Public Administration: %	1974	35.6
Public Administration: %	1973	40.3
Public Administration: %	1972	46.4
Public Administration: %	1971	45.7
Public Administration: %	1970	54.1
Public Administration: %	1969	55.3
Public Administration: %	1968	..
Public Administration: %	1967	52.6
Public Administration: %	1966	..
Public Administration: %	1965	..
Public Administration: %	1964	68.1
Higher education: Total	2000	1,610
Higher education: Total	1999	1,505
Higher education: Total	1998	1,439
Higher education: Total	1997	1,322
Higher education: Total	1996	1,243
Higher education: Total	1995	1,137
Higher education: Total	1994	1,040
Higher education: Total	1993	1,048
Higher education: Total	1992	938
Higher education: Total	1991	640
Higher education: Total	1990	521
Higher education: Total	1989	416
Higher education: Total	1988	333
Higher education: Total	1987	262
Higher education: Total	1986	221
Higher education: Total	1985	192
Higher education: Total	1984	168
Higher education: Total	1983	149
Higher education: Total	1982	129
Higher education: Total	1981	100
Higher education: Total	1980	82
Higher education: Total	1979	49
Higher education: Total	1978	39
Higher education: Total	1977	..
Higher education: Total	1976	9
Higher education: Total	1975	9
Higher education: Total	1974	5
Higher education: Total	1973	5
Higher education: Total	1972	4
Higher education: Total	1971	5
Higher education: Total	1970	1
Higher education: Total	1969	1
Higher education: Total	1968	..
Higher education: Total	1967	1
Higher education: Total	1966	..
Higher education: Total	1965	..
Higher education: Total	1964	1
Higher education: %	2000	29.5
Higher education: %	1999	30.1
Higher education: %	1998	30.5
Higher education: %	1997	32.7
Higher education: %	1996	32.3
Higher education: %	1995	32.0
Higher education: %	1994	31.6
Higher education: %	1993	31.3
Higher education: %	1992	28.9
Higher education: %	1991	22.2
Higher education: %	1990	20.4
Higher education: %	1989	20.4
Higher education: %	1988	19.2
Higher education: %	1987	19.0
Higher education: %	1986	18.6
Higher education: %	1985	20.6
Higher education: %	1984	22.2
Higher education: %	1983	23.0
Higher education: %	1982	22.4
Higher education: %	1981	22.9
Higher education: %	1980	20.9
Higher education: %	1979	16.9
Higher education: %	1978	16.3
Higher education: %	1977	..
Higher education: %	1976	6.2
Higher education: %	1975	7.1
Higher education: %	1974	5.2
Higher education: %	1973	6.2
Higher education: %	1972	7.5
Higher education: %	1971	10.5
Higher education: %	1970	3.6
Higher education: %	1969	3.5
Higher education: %	1968	..
Higher education: %	1967	3.0
Higher education: %	1966	..
Higher education: %	1965	..
Higher education: %	1964	6.4
Companies: Total	2000	2,894
Companies: Total	1999	2,597
Companies: Total	1998	2,457
Companies: Total	1997	1,971
Companies: Total	1996	1,863
Companies: Total	1995	1,712
Companies: Total	1994	1,540
Companies: Total	1993	1,600
Companies: Total	1992	1,639
Companies: Total	1991	1,613
Companies: Total	1990	1,480
Companies: Total	1989	1,149
Companies: Total	1988	982
Companies: Total	1987	762
Companies: Total	1986	663
Companies: Total	1985	516
Companies: Total	1984	393
Companies: Total	1983	313
Companies: Total	1982	282
Companies: Total	1981	199
Companies: Total	1980	193
Companies: Total	1979	146
Companies: Total	1978	126
Companies: Total	1977	..
Companies: Total	1976	87
Companies: Total	1975	73
Companies: Total	1974	55
Companies: Total	1973	39
Companies: Total	1972	27
Companies: Total	1971	21
Companies: Total	1970	14
Companies: Total	1969	12
Companies: Total	1968	..
Companies: Total	1967	9
Companies: Total	1966	..
Companies: Total	1965	..
Companies: Total	1964	3
Companies: %	2000	53.0
Companies: %	1999	52.0
Companies: %	1998	52.1
Companies: %	1997	48.8
Companies: %	1996	48.3
Companies: %	1995	48.3
Companies: %	1994	46.8
Companies: %	1993	47.7
Companies: %	1992	50.5
Companies: %	1991	56.0
Companies: %	1990	57.8
Companies: %	1989	56.3
Companies: %	1988	56.8
Companies: %	1987	55.0
Companies: %	1986	55.8
Companies: %	1985	55.2
Companies: %	1984	51.8
Companies: %	1983	48.4
Companies: %	1982	48.8
Companies: %	1981	45.5
Companies: %	1980	49.9
Companies: %	1979	49.9
Companies: %	1978	52.8
Companies: %	1977	..
Companies: %	1976	57.5
Companies: %	1975	57.2
Companies: %	1974	57.7
Companies: %	1973	52.2
Companies: %	1972	46.1
Companies: %	1971	43.8
Companies: %	1970	42.4
Companies: %	1969	41.2
Companies: %	1968	..
Companies: %	1967	44.4
Companies: %	1966	..
Companies: %	1965	..
Companies: %	1964	25.5
PNPI: Total	2000	54
PNPI: Total	1999	50
PNPI: Total	1998	52
PNPI: Total	1997	45
PNPI: Total	1996	42
PNPI: Total	1995	40
PNPI: Total	1994	32
PNPI: Total	1993	32
PNPI: Total	1992	18
PNPI: Total	1991	15
PNPI: Total	1990	14
PNPI: Total	1989	11
PNPI: Total	1988	14
PNPI: Total	1987	12
PNPI: Total	1986	8
PNPI: Total	1985	..
PNPI: Total	1984	..
PNPI: Total	1983	..
PNPI: Total	1982	..
PNPI: Total	1981	..
PNPI: Total	1980	..
PNPI: Total	1979	..
PNPI: Total	1978	..
PNPI: Total	1977	..
PNPI: Total	1976	1
PNPI: Total	1975	..
PNPI: Total	1974	1
PNPI: Total	1973	1
PNPI: Total	1972	..
PNPI: Total	1971	..
PNPI: Total	1970	..
PNPI: Total	1969	..
PNPI: Total	1968	..
PNPI: Total	1967	..
PNPI: Total	1966	..
PNPI: Total	1965	..
PNPI: Total	1964	..
PNPI: %	2000	1.0
PNPI: %	1999	1.0
PNPI: %	1998	1.1
PNPI: %	1997	1.1
PNPI: %	1996	1.1
PNPI: %	1995	1.1
PNPI: %	1994	1.0
PNPI: %	1993	1.0
PNPI: %	1992	0.6
PNPI: %	1991	0.5
PNPI: %	1990	0.5
PNPI: %	1989	0.5
PNPI: %	1988	0.8
PNPI: %	1987	0.8
PNPI: %	1986	0.7
PNPI: %	1985	..
PNPI: %	1984	..
PNPI: %	1983	..
PNPI: %	1982	..
PNPI: %	1981	..
PNPI: %	1980	..
PNPI: %	1979	..
PNPI: %	1978	..
PNPI: %	1977	..
PNPI: %	1976	0.5
PNPI: %	1975	..
PNPI: %	1974	1.5
PNPI: %	1973	1.2
PNPI: %	1972	..
PNPI: %	1971	..
PNPI: %	1970	..
PNPI: %	1969	..
PNPI: %	1968	..
PNPI: %	1967	..
PNPI: %	1966	..
PNPI: %	1965	..
PNPI: %	1964	..