1965
17
14.1
11.8
10.1
7.13
21.5
60.4
103
68.8
34.5
21.9
15.9
1966
12.8
11.6
9.48
7.82
13.8
23.2
59.5
119
78.8
34.4
20.6
15.4
1967
12.5
9.99
10.2
9.76
8.04
29.6
83
129
121
44.5
24
17.2
1968
15.6
12.9
10.4
8.80
7.71
29.4
105
147
86.4
67.1
25.1
19.3
1969
17
14.3
13.1
11.4
11.8
14.9
48.3
231
226
62.9
20.3
16.4
1970
14.3
12.6
9.83
7.76
9.70
73
185
203
134
75.1
39
24.2
1971
16.1
12.1
10.5
15.1
13.8
80.9
139
225
131
74.7
44.8
29.7
1972
23.1
20.6
16.8
13.8
11.4
21.8
76.4
78
94.8
47.4
21
12
1973
15.4
12.5
11.9
6.47
10.3
64.6
175
238
258
188
34.4
26.3
1974
19
14.5
11.7
9.67
9.31
15.6
74.1
125
757
43.6
24.2
22.7
1975
22.8
24.1
22.9
13.9
11.4
30.7
121
318
262
96.5
31.3

1976
14.4
14.7
11.1
10.1
10.1
18.4
79.1
146
153
57
20.6
14
1977
11.2
9.62
7.86
7.80
8.91
16.2
79.8
187
154
58.4
32.6
23.4
1978
19.6
17.5
16.5
14.6
14
96
292
243
101
66.1
23.6
16.5
1979
16.2
16.6
11.6
10.3
13.2
22.9
104
170
64.9
38.3
25.1
21.7
1980
21.3
15.9
14.5
10.9
13.5
50.7
189
293
243
57.2
24.5
18
1981
15.7
12.6
11.4
10.2
11.3
29.4
125
221
222
76.2
28.6
16.1
1982
13
11.9
12.6
9.89
9.99
15
64.2
300
316
70.8
29
19.3
1983
15.8
13.3
10.7
9.75
12.3
9.93
41.7
144
311
150
48.4
27.6
1984
20.1
13.4
9.86
8.73
7.15
36.5
216
240
301
52.6
24.9
16.7
1985
13.3
11.6
10.2
9.99
12.7
17.9
108
175
130
84.8
27.7
16.5
1986
11.9
9.64
7.48
7.33
7.42
49.7
186
288
207
108
40.3
27.7
1987
14.3
12.9
9.66
7.86
9.04
9.60
108
268
213
106
38.3
24.3
1988
17.8
15.3
14.7
11
13.7
33.3
303
336
172
51.1
29.1
22.2
1989
28.8
16.6
14.5
11.6
12.2
25.3
154
458
252
111
44.8
31.2
1990
20.3
20.4
19.7
14.2
16
40.1
237
273
147
80.5
35
22.7
1991
18.7
12.7
11.5
9.22
8.89
31.2
64
243
183
46.7
23.4
17.9
1992
14.8
11.6
8.55
8.30
7.94
11.4
26.6
148
129
47.8
23.7
15.8
1993
11.9
9.42
9.39
8.70
7.83
18.3
35.4
223
277
103
39
23.1
1994
17.3
14.1
11
9.68
11.1
49
169
276
179
58.2
23.4
14.4
1995
12
10.7
9.60
8.04
7.64
41.5
107
263
160
59.9
39.5
24.4
1996
21.3
21.9
18.2
15.9
13.4
41
163
245
158
113
41.8
23.3
1997
33.3
26.6
20.9
26.2
17.2
40.4
252
156
151
55.1
28.5
25.2
1998
15.5
12.2
11.9
10.9
10.5
20
159
294
243
112
54.2
35.9
1999
27
20.7
16.8
14.2
16.4
98.4
200
351
408
164
36
16.4
