Occupation;years;Total
Total;2001;23,468
Total;2000;22,400
Total;1999;22,283
Total;1998;20,170
Total;1997;19,189
Total;1996;17,866
Total;1995;17,153
Total;1994;17,546
Total;1993;17,266
Total;1992;16,678
Total;1991;17,519
Total;1990;17,170
Total;1989;14,606
Total;1988;13,747
Total;1987;12,643
Total;1986;11,636
Total;1985;10,031
Total;1984;10,695
Total;1983;10,213
Total;1982;10,595
Total;1981;11,805
Total;1980;11,400
Total;1979;11,115
Total;1978;11,041
Total;1977;..
Total;1976;11,553
Total;1975;11,438
Total;1974;9,423
Total;1973;8,886
Total;1972;12,063
Total;1971;11,661
Total;1970;9,058
Total;1969;8,579
Researchers;2001;13,345
Researchers;2000;12,708
Researchers;1999;11,935
Researchers;1998;11,021
Researchers;1997;10,490
Researchers;1996;9,126
Researchers;1995;8,359
Researchers;1994;7,820
Researchers;1993;7,737
Researchers;1992;7,660
Researchers;1991;8,079
Researchers;1990;7,623
Researchers;1989;5,864
Researchers;1988;5,706
Researchers;1987;4,528
Researchers;1986;4,060
Researchers;1985;2,839
Researchers;1984;2,917
Researchers;1983;2,872
Researchers;1982;3,351
Researchers;1981;3,632
Researchers;1980;3,536
Researchers;1979;3,369
Researchers;1978;3,197
Researchers;1977;..
Researchers;1976;3,239
Researchers;1975;3,278
Researchers;1974;2,991
Researchers;1973;2,703
Researchers;1972;4,499
Researchers;1971;4,364
Researchers;1970;3,261
Researchers;1969;3,037
Technicians;2001;5,659
Technicians;2000;4,760
Technicians;1999;4,879
Technicians;1998;4,087
Technicians;1997;3,826
Technicians;1996;3,343
Technicians;1995;3,364
Technicians;1994;4,005
Technicians;1993;3,835
Technicians;1992;2,588
Technicians;1991;2,586
Technicians;1990;2,598
Technicians;1989;2,549
Technicians;1988;2,306
Technicians;1987;1,638
Technicians;1986;1,375
Technicians;1985;1,470
Technicians;1984;1,554
Technicians;1983;1,256
Technicians;1982;1,094
Technicians;1981;1,242
Technicians;1980;1,161
Technicians;1979;1,081
Technicians;1978;749
Technicians;1977;..
Technicians;1976;846
Technicians;1975;..
Technicians;1974;825
Technicians;1973;992
Technicians;1972;747
Technicians;1971;732
Technicians;1970;543
Technicians;1969;498
Assistants;2001;4,464
Assistants;2000;4,932
Assistants;1999;5,470
Assistants;1998;5,062
Assistants;1997;4,873
Assistants;1996;5,397
Assistants;1995;5,430
Assistants;1994;5,722
Assistants;1993;5,695
Assistants;1992;6,430
Assistants;1991;6,855
Assistants;1990;6,949
Assistants;1989;6,193
Assistants;1988;5,735
Assistants;1987;6,478
Assistants;1986;6,201
Assistants;1985;5,723
Assistants;1984;6,224
Assistants;1983;6,085
Assistants;1982;6,150
Assistants;1981;6,931
Assistants;1980;6,703
Assistants;1979;6,665
Assistants;1978;7,095
Assistants;1977;..
Assistants;1976;7,468
Assistants;1975;..
Assistants;1974;5,607
Assistants;1973;5,191
Assistants;1972;6,817
Assistants;1971;6,565
Assistants;1970;5,254
Assistants;1969;5,044