1970
1975
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995** |
70 521
126 107
103 974
108 559
126 745
124 791
139 588
138 671
160 926
152 704
155 325
151 146
147 530
124 059
111 107
86 906
89 421
83 963 |
36.1
57.4
42.1
43.0
50.5
48.7
53.3
55.0
50.6
47.5
48.3
46.8
45.6
38.3
33.8
26.6
27.4
25.9 |
31.9
65.4
76.1
79.6
79.3
75.9
84.1
83.6
96.6
84.6
81.8
81.0
78.3
78.4
70.0
56.6
60.2
56.5 |
24.2
39.5
43.2
44.3
44.2
43.4
45.7
43.3
49.1
45.8
45.0
44.7
43.9
43.9
41.1
36.0
37.5
33.9 |
