year |
value |
1950 |
0.0 |
1951 |
0.0 |
1952 |
0.0 |
1953 |
0.0 |
1954 |
0.0 |
1955 |
0.0 |
1956 |
0.0 |
1957 |
0.0 |
1958 |
0.0 |
1959 |
0.0 |
1960 |
0.0 |
1961 |
0.0 |
1962 |
0.0 |
1963 |
0.0 |
1964 |
1.0 |
1965 |
2.0 |
1966 |
4.0 |
1967 |
8.0 |
1968 |
15.0 |
1969 |
27.0 |
1970 |
50.0 |
1971 |
98.0 |
1972 |
146.0 |
1973 |
171.0 |
1974 |
601.0 |
1975 |
862.0 |
1976 |
1431.0 |
1977 |
2137.0 |
1978 |
3540.0 |
1979 |
4389.0 |
1980 |
4312.0 |
1981 |
8418.0 |
1982 |
10695.0 |
1983 |
17298.0 |
1984 |
21881.0 |
1985 |
29473.0 |
1986 |
44831.0 |
1987 |
46453.0 |
1988 |
78744.0 |
1989 |
111337.0 |
1990 |
145990.0 |
1991 |
154900.0 |
1992 |
124138.0 |
1993 |
155581.0 |
1994 |
202459.0 |
1995 |
261522.0 |
1996 |
297557.0 |
1997 |
332581.0 |
1998 |
360806.0 |
1999 |
425154.0 |
2000 |
440061.0 |
2001 |
436103.0 |
2002 |
462495.0 |
2003 |
509544.0 |
2004 |
563815.0 |
2005 |
586512.0 |
2006 |
629888.0 |
2007 |
744222.0 |
2008 |
737694.0 |
2009 |
862907.7 |