Year | Value | 2022 | 46,503 | 2021 | 46,585 | 2020 | 46,459 | 2019 | 45,792 | 2018 | 45,306 | 2017 | 44,649 | 2016 | 43,901 | 2015 | 43,096 | 2014 | 42,236 | 2013 | 41,311 | 2012 | 40,320 | 2011 | 39,268 | 2010 | 38,172 | 2009 | 37,051 | 2008 | 35,910 | 2007 | 34,775 | 2006 | 33,682 | 2005 | 32,645 | 2004 | 31,658 | 2003 | 30,711 | 2002 | 29,829 | 2001 | 29,059 | 2000 | 28,419 | 1999 | 27,917 | 1998 | 27,579 | 1997 | 27,347 | 1996 | 27,086 | 1995 | 26,716 | 1994 | 26,229 | 1993 | 25,602 | 1992 | 24,861 | 1991 | 24,120 | 1990 | 23,457 | 1989 | 22,873 | 1988 | 22,373 | 1987 | 21,955 | 1986 | 21,553 | 1985 | 21,128 | 1984 | 20,666 | 1983 | 20,138 | 1982 | 19,544 | 1981 | 18,921 | 1980 | 18,312 | 1979 | 17,730 | 1978 | 17,207 | 1977 | 16,771 | 1976 | 16,413 | 1975 | 16,126 | 1974 | 15,900 | 1973 | 15,720 | 1972 | 15,566 | 1971 | 15,423 | 1970 | 15,276 | 1969 | 15,123 | 1968 | 14,974 | 1967 | 14,831 | 1966 | 14,693 | 1965 | 14,561 | 1964 | 14,428 | 1963 | 14,293 | 1962 | 14,154 | 1961 | 14,015 | 1960 | 13,875 |
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