|
Year
|
Services
|
|
|
|
|
0.0
|
|
1960
|
7.7
|
|
1961
|
7.7
|
|
1962
|
8.1
|
|
1963
|
8.4
|
|
1964
|
8.6
|
|
1965
|
9.1
|
|
1966
|
10.5
|
|
1967
|
11.9
|
|
1968
|
12.3
|
|
1969
|
13.3
|
|
1970
|
14.5
|
|
1971
|
15.4
|
|
1972
|
16.9
|
|
1973
|
18.8
|
|
1974
|
21.4
|
|
1975
|
22.0
|
|
1976
|
24.6
|
|
1977
|
27.6
|
|
1978
|
32.2
|
|
1979
|
36.7
|
|
1980
|
41.5
|
|
1981
|
45.5
|
|
1982
|
51.7
|
|
1983
|
54.9
|
|
1984
|
67.7
|
|
1985
|
72.8
|
|
1986
|
81.8
|
|
1987
|
92.3
|
|
1988
|
100.0
|
|
1989
|
104.2
|
|
1990
|
120.0
|
|
1991
|
121.2
|
|
1992
|
118.1
|
|
1993
|
122.1
|
|
1994
|
131.1
|
|
1995
|
139.4
|
|
1996
|
150.6
|
|
1997
|
164.4
|
|
1998
|
178.6
|
|
1999
|
196.7
|
|
2000
|
221.0
|
|
2001
|
219.5
|
|
2002
|
227.4
|
| more... |
more... |
|
|
OK to share with attribution
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