Year | Value | 2022 | 52,303 | 2021 | 49,510 | 2020 | 46,583 | 2019 | 44,884 | 2018 | 44,054 | 2017 | 42,937 | 2016 | 41,988 | 2015 | 41,119 | 2014 | 40,121 | 2013 | 38,929 | 2012 | 37,771 | 2011 | 36,676 | 2010 | 35,597 | 2009 | 34,289 | 2008 | 32,914 | 2007 | 31,777 | 2006 | 30,804 | 2005 | 29,923 | 2004 | 29,090 | 2003 | 28,311 | 2002 | 27,669 | 2001 | 27,142 | 2000 | 26,745 | 1999 | 26,472 | 1998 | 26,200 | 1997 | 26,072 | 1996 | 26,291 | 1995 | 26,572 | 1994 | 26,093 | 1993 | 26,384 | 1992 | 27,221 | 1991 | 27,246 | 1990 | 27,274 | 1989 | 27,227 | 1988 | 27,146 | 1987 | 26,934 | 1986 | 26,591 | 1985 | 26,248 | 1984 | 25,842 | 1983 | 25,399 | 1982 | 24,928 | 1981 | 24,465 | 1980 | 23,838 | 1979 | 23,198 | 1978 | 22,715 | 1977 | 22,184 | 1976 | 21,682 | 1975 | 21,230 | 1974 | 20,769 | 1973 | 20,354 | 1972 | 20,311 | 1971 | 20,177 | 1970 | 19,616 | 1969 | 18,994 | 1968 | 18,276 | 1967 | 17,489 | 1966 | 16,758 | 1965 | 16,198 | 1964 | 15,735 | 1963 | 15,379 | 1962 | 15,208 | 1961 | 15,038 | 1960 | 14,843 |
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