Year | Value | 2022 | 33,853 | 2021 | 34,779 | 2020 | 38,652 | 2019 | 42,386 | 2018 | 44,265 | 2017 | 45,547 | 2016 | 45,582 | 2015 | 44,740 | 2014 | 43,300 | 2013 | 41,725 | 2012 | 41,001 | 2011 | 41,939 | 2010 | 44,620 | 2009 | 46,232 | 2008 | 45,255 | 2007 | 43,007 | 2006 | 39,970 | 2005 | 36,645 | 2004 | 33,307 | 2003 | 30,797 | 2002 | 29,680 | 2001 | 28,999 | 2000 | 28,108 | 1999 | 27,123 | 1998 | 26,072 | 1997 | 24,977 | 1996 | 23,911 | 1995 | 22,957 | 1994 | 22,175 | 1993 | 21,623 | 1992 | 21,356 | 1991 | 21,346 | 1990 | 21,537 | 1989 | 21,693 | 1988 | 21,594 | 1987 | 21,251 | 1986 | 20,689 | 1985 | 19,979 | 1984 | 19,182 | 1983 | 18,328 | 1982 | 17,444 | 1981 | 16,585 | 1980 | 15,815 | 1979 | 15,048 | 1978 | 14,187 | 1977 | 13,254 | 1976 | 12,266 | 1975 | 11,258 | 1974 | 10,285 | 1973 | 9,384 | 1972 | 8,578 | 1971 | 7,921 | 1970 | 7,493 | 1969 | 7,252 | 1968 | 7,115 | 1967 | 7,063 | 1966 | 7,074 | 1965 | 7,120 | 1964 | 7,109 | 1963 | 7,007 | 1962 | 6,865 | 1961 | 6,691 | 1960 | 6,489 |
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