1965
25.6
65
20.2
1966
25.8
67.400000000000006
21.4
1967
27.4
70.099999999999994
22.5
1968
28.1
71.099999999999994
23.8
1969
31.3
71.900000000000006
25.4
1970
32.700000000000003
73.8
26.9
1971
34.299999999999997
76
28.8
1972
35.799999999999997
76.599999999999994
30.2
1973
36.700000000000003
76.900000000000006
31.4
1974
39.200000000000003
77.900000000000006
32.700000000000003
1975
39.200000000000003
75.8
33.9
1976
39.4
74.5
34.700000000000003
1977
41
74
35.6
1978
41
73.400000000000006
36.299999999999997
1979
42.8
73.7
37.4
1980
43.6
74.599999999999994
38.700000000000003
1981
44.8
77.8
40.4
1982
46.3
77.900000000000006
42.3
1983
43.5
74.7
43.4
1984
45.9
75
44.7
1985
48.9
76.7
46.2
1986
50.3
79
47.7
1987
50.6
80.2
49
1988
54.1
83
50.8
1989
57.4
86.7
53.3
1990
59.5
88.4
55.5
1991
58.8
85.5
56.8
1992
58.3
83.3
57.7
1993
59.9
82.9
59.1
1994
62.6
84.8
60.7
1995
65.599999999999994
88.4
62.6
1996
68.7
88.8
64.8
1997
71.099999999999994
89.1
67.2
1998
74.5
89.6
70
1999
78.2
90
72.7
2000
81.3
93.6
75.5
2001
81.599999999999994
91.7
77.5
2002
84.5
91.5
79.599999999999994
2003
87.2
92.9
82.3
2004
91.2
94.3
86.1
2005
93.9
97
90
2006
96.6
97.3
95
2007
100
100
100
2008
103.8
102.7
106.3
Y
K
L
year





