Year | Value | 2022 | 38,973 | 2021 | 43,010 | 2020 | 43,873 | 2019 | 44,186 | 2018 | 44,249 | 2017 | 44,149 | 2016 | 43,925 | 2015 | 43,705 | 2014 | 43,615 | 2013 | 43,382 | 2012 | 42,920 | 2011 | 42,014 | 2010 | 40,744 | 2009 | 39,256 | 2008 | 37,681 | 2007 | 36,198 | 2006 | 35,012 | 2005 | 34,121 | 2004 | 33,204 | 2003 | 32,348 | 2002 | 31,500 | 2001 | 30,427 | 2000 | 29,522 | 1999 | 29,179 | 1998 | 29,549 | 1997 | 30,612 | 1996 | 32,464 | 1995 | 34,175 | 1994 | 35,421 | 1993 | 35,821 | 1992 | 35,238 | 1991 | 34,499 | 1990 | 33,657 | 1989 | 32,475 | 1988 | 31,369 | 1987 | 30,469 | 1986 | 29,592 | 1985 | 28,916 | 1984 | 28,372 | 1983 | 27,597 | 1982 | 26,524 | 1981 | 25,254 | 1980 | 24,001 | 1979 | 22,890 | 1978 | 21,982 | 1977 | 21,265 | 1976 | 20,637 | 1975 | 20,028 | 1974 | 19,479 | 1973 | 18,979 | 1972 | 18,459 | 1971 | 17,868 | 1970 | 17,157 | 1969 | 16,351 | 1968 | 15,514 | 1967 | 14,695 | 1966 | 13,928 | 1965 | 13,270 | 1964 | 12,759 | 1963 | 12,358 | 1962 | 12,064 | 1961 | 11,854 | 1960 | 11,711 |
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