1969
20.5
17.3
17
18.8
26.1
69.4
191
210
180
71
35.4
23.4
1970
18.2
15.7
15.3
18.3
22.8
75.4
199
231
125
68.3
37.4
25.5
1971
21.1
18.3
17.6
21.3
26.7
131
179
213
135
64.5
44.6
29.2
1972
22.4
21.1
21
21.1
40.4
74.3
173
196
153
60.8
39.2
28.1
1973
22.5
19.9
20.5
27.1
39.2
122
149
202
169
100
39
32.1
1974
26.1
20.2
19.9
25.2
30.8
86
211
233
172
84.7
41.6
28.9
1975
22.2
19.2
18.6
27
38.4
106
174
197
206
90
50.5
30.6
1976
25.3
23.5
21.5
24.8
33.5
109
148
186
141
63.3
43.8
26.9
1977
20.9
18.8
16.9
19
26.7
60.7
212
218
140
82.9
45.3
26.1
1978
20.5
16.8
16.1
23.5
53.5
120
200
241
132
77.2
41.1
29.7
1979
28.3
21.6
19.1
23
33
58.9
191
206
127
64.3
44.7
32.2
1980
26.2
24.5
25.3
30.2
36.4
87.6
240
255
122
71.4
37.7
24.9
1981
21.3
19
17.9
22.6
29.5
77.2
210
206
138
48.8
32.7
21.2
1982
18.2
16.9
15.6
38.4
30.5
68.5
181
266
155
61.3
41.8
29.8
1983
27.8
25.4
21.8
26.1
45.2
80.2
212
288
221
108
55.8
30.8
1984
23.8
18.2
12.8
9.67
37.3
135
267
209
238
87.9
28.1
17.7
1985
13.1
9.01
8.10
9.05
12.1
65.7
211
242
219
120
41.4
27.3
1986
22.4
20.3
21.3
31.5
51.2
64.2
32.9
252
206
66.6
33.1
23.4
1987
31.7
31.7
34.6
54
90.4
111
230
262
193
69
32.6
37.4
1988
27.5
26.2
26.8
32.1
39.1
118
329
846
116
51.2
30.8
21.7
1989
20.4
19
19.5
21.9
32.4
99.3
163
206
160
86.9
37.3
26.2
1990
22.5
22.2
20.9
23.1
34.6
73.4
129
149
140
81.6
47
30
1991
26.4
22.6
22.4
24.5
35.2
79.1
793
590
173
86.2
44.8
33.8
1992
29.7
27.4
26.3
25.6
30.6
44
105
193
125
84.3
58.9
37.4
1993
32.3
29.3
27.1
30
42.5
57.4
76.4
328
195
91.4
55
37.7
1994
32.2
30.4
29.3
29.4
45.1
144
144
195
124
71.3
40.2
35.4
1995
33.3
31.2
30.7
32.4
89.2
114
193
208
194
86.8
59.8
43.8








































































































