Year | Value | 2022 | 49,392 | 2021 | 48,945 | 2020 | 48,525 | 2019 | 48,118 | 2018 | 47,662 | 2017 | 47,073 | 2016 | 46,323 | 2015 | 45,419 | 2014 | 44,379 | 2013 | 43,282 | 2012 | 42,223 | 2011 | 41,232 | 2010 | 40,294 | 2009 | 39,433 | 2008 | 38,677 | 2007 | 37,980 | 2006 | 37,316 | 2005 | 36,713 | 2004 | 36,162 | 2003 | 35,589 | 2002 | 34,972 | 2001 | 34,351 | 2000 | 33,733 | 1999 | 33,146 | 1998 | 32,539 | 1997 | 31,862 | 1996 | 31,147 | 1995 | 30,400 | 1994 | 29,667 | 1993 | 28,983 | 1992 | 28,336 | 1991 | 27,712 | 1990 | 27,088 | 1989 | 26,454 | 1988 | 25,814 | 1987 | 25,156 | 1986 | 24,469 | 1985 | 23,779 | 1984 | 23,103 | 1983 | 22,449 | 1982 | 21,815 | 1981 | 21,196 | 1980 | 20,592 | 1979 | 20,027 | 1978 | 19,509 | 1977 | 19,024 | 1976 | 18,578 | 1975 | 18,154 | 1974 | 17,652 | 1973 | 17,037 | 1972 | 16,385 | 1971 | 15,713 | 1970 | 15,179 | 1969 | 14,799 | 1968 | 14,424 | 1967 | 14,056 | 1966 | 13,688 | 1965 | 13,321 | 1964 | 12,945 | 1963 | 12,580 | 1962 | 12,222 | 1961 | 11,834 | 1960 | 11,440 |
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