Year | Value | 2022 | 38,656 | 2021 | 38,080 | 2020 | 37,607 | 2019 | 37,196 | 2018 | 36,794 | 2017 | 36,366 | 2016 | 35,893 | 2015 | 35,348 | 2014 | 34,706 | 2013 | 33,969 | 2012 | 33,143 | 2011 | 32,238 | 2010 | 31,261 | 2009 | 30,213 | 2008 | 29,113 | 2007 | 28,010 | 2006 | 26,893 | 2005 | 25,901 | 2004 | 25,100 | 2003 | 24,353 | 2002 | 23,405 | 2001 | 22,216 | 2000 | 21,074 | 1999 | 20,003 | 1998 | 18,892 | 1997 | 17,702 | 1996 | 16,743 | 1995 | 16,161 | 1994 | 15,847 | 1993 | 15,400 | 1992 | 15,588 | 1991 | 15,682 | 1990 | 14,484 | 1989 | 13,295 | 1988 | 12,608 | 1987 | 12,118 | 1986 | 11,612 | 1985 | 11,120 | 1984 | 10,624 | 1983 | 10,152 | 1982 | 9,725 | 1981 | 9,284 | 1980 | 8,767 | 1979 | 8,158 | 1978 | 7,485 | 1977 | 6,799 | 1976 | 6,157 | 1975 | 5,599 | 1974 | 5,140 | 1973 | 4,762 | 1972 | 4,434 | 1971 | 4,140 | 1970 | 3,879 | 1969 | 3,638 | 1968 | 3,429 | 1967 | 3,253 | 1966 | 3,082 | 1965 | 2,915 | 1964 | 2,757 | 1963 | 2,612 | 1962 | 2,486 | 1961 | 2,378 | 1960 | 2,286 |
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