Year | Value | 2022 | 5,821 | 2021 | 6,023 | 2020 | 6,192 | 2019 | 6,163 | 2018 | 6,414 | 2017 | 6,768 | 2016 | 6,633 | 2015 | 6,452 | 2014 | 6,261 | 2013 | 6,078 | 2012 | 5,923 | 2011 | 5,771 | 2010 | 5,549 | 2009 | 5,313 | 2008 | 5,107 | 2007 | 4,882 | 2006 | 4,651 | 2005 | 4,429 | 2004 | 4,253 | 2003 | 4,123 | 2002 | 3,949 | 2001 | 3,811 | 2000 | 3,761 | 1999 | 3,694 | 1998 | 3,620 | 1997 | 3,515 | 1996 | 3,389 | 1995 | 3,302 | 1994 | 3,259 | 1993 | 3,224 | 1992 | 3,175 | 1991 | 3,126 | 1990 | 3,072 | 1989 | 3,014 | 1988 | 2,961 | 1987 | 2,907 | 1986 | 2,841 | 1985 | 2,761 | 1984 | 2,677 | 1983 | 2,607 | 1982 | 2,546 | 1981 | 2,489 | 1980 | 2,454 | 1979 | 2,428 | 1978 | 2,410 | 1977 | 2,389 | 1976 | 2,333 | 1975 | 2,266 | 1974 | 2,197 | 1973 | 2,137 | 1972 | 2,150 | 1971 | 2,196 | 1970 | 2,229 | 1969 | 2,265 | 1968 | 2,287 | 1967 | 2,288 | 1966 | 2,280 | 1965 | 2,256 | 1964 | 2,199 | 1963 | 2,124 | 1962 | 2,047 | 1961 | 1,979 | 1960 | 1,936 |
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