1967
5.73
5.81
7.90
9.42
5.87
6.70
35.5
79.7
43.3
15.6
9.19
7.12
1968
5.89
6.31
9.33
10.3
11.9
19.3
48.6
59.0
23.9
13.6
8.28
6.20
1969
5.57
5.31
6.46
8.53
16.9
15.5
46.1
71.8
47.2
21.1
10.7
7.53
1970
5.99
5.40
5.22
5.91
4.93
19.3
42.4
57.3
38.2
21.2
10.3
6.96
1971
5.47
4.88
6.76
9.80
10.2
41.2
59.7
73.8
53.4
24.6
14.6
9..59
1972
7.12
6.94
8.08
10.5
14.2
10.9
28.3
49.6
40.4
17.8
10.6
7.20
1973
6.60
7.14
15.1
16.9
17.9
32.5
34.2
64.0
59.3
57.0
17.9
11.3
1974
8.20
7.09
6.47
7.24
7.55
15.3
42.6
73.8
33.9
20.3
10.8
8.14
1975
6.78
7.60
11.4
17.8
16.4
38.6
59.1
76.1
63.6
26.9
14.2
9.78
1976
7.54
7.75
7.62
11.3
14.8
21.8
35.1
76.6
68.7
18.6
10.1
7.12
1978
5.21
4.82
11.3
20.5
23.8
27.2
46.3
79.2
51.1
21.3
11.8
8.55
1979
6.07
5.63
7.90
12.3
15.9
17.0
43.5
41.9
18.8
10.6
6.01
4.99
1980
3.83
3.39
6.79
10.7
11.7
27.9
74.4
79.6
43.4
19.2
10.3
7.40
1981
6.10
5.88
7.21
13.9
15.2
17.1
55.4
61.0
40.8
22.1
11.4
6.96
1982
5.28
5.03
10.9
17.9
29.6
33.0
34.5
55.0
48.0
16.5
9.46
6.63
1983
5.39
4.89
5.12
8.98
17.8
19.1
29.6
46.9
60.7
33.8
14.5
9.56
1984
6.91
6.27
6.36
6.16
8.99
18.4
38.0
37.8
44.1
13.4
7.63
5.55
1985
4.94
4.22
3.69
5.35
6.25
6.37
41.3
52.1
45.5
17.4
10.9
8.46
1986
6.75
7.11
7.30
11.2
13.0
22.2
57.1
48.5
25.7
19.2
10.9
8.46
1987
67.11
6.04
5.94
8.51
20.4
19.6
37.1
34.1
33.5
16.3
9.24
6.95
1988
5.75
5.13
11.6
15.0
15.6
13.8
54.1
66.1
28.4
15.2
8.66
6.05
1989
6.41
5.83
6.75
7.24
9.35
11.2
40.9
51.7
35.7
16.7
9.43
6.73
1990
4.99
4.91
8.62
17.0
18.5
17.7
58.3
54.0
44.1
20.8
11.2
8.05
1991
6.85
6.10
14.9
23.4
26.4
27.9
39.6
61.5
43.4
15.4
9.12
6.74
1992
5.71
5.15
4.79
4.24
6.54
8.66
31.4
68.7
46.1
17.8
9.76
7.47
1993
6.50
6.20
8.23
18.1
18.2
23.7
32.8
36.7
42.6
16.3
9.64
6.81
1994
5.69
5.17
5.57
4.20
8.07
10.9
38.6
58.8
38.9
14.6
8.63
6.37
1995
5.39
5.39
7.59
9.60
13.5
13.6
38.5
95.1
69.8
28.1
15.9
9.87
1996
6.17
6.14
10.5
9.96
11.7
15.7
38.0
51.1
26.0
12.6
8.44
21.8
1997
7.44
6.93
4.15
7.45
10.5
22.0
60.8
73.6
56.7
26.1
9.35
9.33
1998
5.75
5.15
9.10
17.5
20.8
15.2
69.4
105
66.4
27.4
14.2
8.57
1999
9.39
4.64
3.24
2.60
2.53
11.5
32.7
53.9
42.2
32.2
11.4
7.46
2000
5.56
4.63
4.76
7.89
12.4
31.4
57.9
64.0
51.3
17.9
10.4
7.71
2001
6.32
5.08
4.74
6.72
13.9
37.6
51.4
96.9
32.2
13.9
7.93
5.74
2002
5.00
5.71
9.97
15.7
20.5
17.8
22.0
61.4
43.5
16.4
9.77
6.89
