1964
14.7
14.4
14.3
15.0
29.4
32.8
55.2
180
127
46.4
34.4
23.6
1965
15.9
14.0
14.1
15.3
16.8
62.4
119
149
77.7
27.1
20.9
14.8
1966
12.0
11.0
10.5
9.83
11.0
27.3
92.4
106
66.2
28.5
17.8
12.4
1967
10.4
10.4
10.1
11.2
11.9
25.1
98.5
98.4
87.1
39.9
24.8
20.2
1968
11.0
8.58
10.9
11.2
16.8
67.6
150
132
106
162
34.8
20.7
1969
16.3
13.1
13.6
13.4
14.9
29.0
81.1
153
136
55.3
30.0
19.2
1970
14.6
12.3
11.5
13.5
16.6
43.2
172
187
99.6
51.9
27.0
15.8
1971
11.1
8.62
8.68
13.7
18.6
90.4
130
138
103
72.0
32.5
18.9
1972
12.1
9.45
8.98
9.56
25.4
51.8
151
161
111
48.6
22.9
14.8
1973
11.2
7.97
8.13
11.5
17.3
77.7
108
170
117
115
29.1
14.1
1974
13.2
11.8
11.4
14.8
13.9
37.4
157
169
101
54.7
20.3
16.2
1975
15.7
15.3
14.3
10.8
11.3
35.9
169
130
121
57.3
24.6
14.4
1976
10.5
10.9
9.27
11.7
19.1
76.8
159
146
95.0
42.1
21.8
16.9
1977
11.1
9.79
9.96
15.0
23.0
43.8
124
175
108
52.3
36.0
21.5
1978
18.2
17.7
15.0
14.2
35.8
67.0
143
129
83.8
42.9
22.9
17.3
1979
13.4
11.5
10.6
10.9
13.8
31.3
104
134
75.2
40.2
22.5
14.9
1980
9.82
9.09
10.3
10.9
17.7
59.6
160
148
121
42.5
24.9
15.1
1981
10.6
8.62
9.54
16.8
21.8
44.7
160
148
111
41.3
16.6
12.9
1982
11.9
10.8
13.0
14.9
18.9
38.7
111
168
102
35.9
21.4
18.6
1984
14.7
12.2
12.0
12.9
23.0
53.6
155
118
105
35.0
21.2
16.0



































































































































































































