1965
5.94
4.97
4.29
2.82
0.50
17.2
37.9
55.7
36.4
19.3
10.5
6.68
1966
5.66
4.87
4.21
3.98
1.11
6.01
31.8
73.1
52.6
17.2
9.54
6.64
1967
5.16
4.07
6.11
4.23
3.65
13.5
40.7
65.9
72.9
36.1
15.9
9.82
1968
5.12
4.88
4.66
2.76
0.88
23.4
67.3
84.7
56.4
59.4
16.5
7.41
1969




2.60
6.91
23.4
55.5
533
22.6
11
7.37
1970
6.49
5.81
4.69
3.30
3.16
24.3
50.3
48.2
39.7
19.2
11
10.5
18.9
























































































































































































































































































































































































