Year | Value | 2022 | 51,856 | 2021 | 51,242 | 2020 | 50,422 | 2019 | 49,438 | 2018 | 48,310 | 2017 | 47,098 | 2016 | 45,763 | 2015 | 44,283 | 2014 | 42,612 | 2013 | 40,914 | 2012 | 39,298 | 2011 | 37,711 | 2010 | 36,204 | 2009 | 34,887 | 2008 | 33,726 | 2007 | 32,803 | 2006 | 32,164 | 2005 | 31,673 | 2004 | 31,239 | 2003 | 30,833 | 2002 | 30,370 | 2001 | 29,743 | 2000 | 28,967 | 1999 | 28,073 | 1998 | 27,097 | 1997 | 25,969 | 1996 | 24,774 | 1995 | 23,627 | 1994 | 24,016 | 1993 | 24,508 | 1992 | 23,231 | 1991 | 21,679 | 1990 | 20,311 | 1989 | 19,670 | 1988 | 18,963 | 1987 | 18,111 | 1986 | 17,887 | 1985 | 17,890 | 1984 | 17,926 | 1983 | 17,678 | 1982 | 17,220 | 1981 | 16,614 | 1980 | 15,881 | 1979 | 15,144 | 1978 | 14,550 | 1977 | 14,055 | 1976 | 13,530 | 1975 | 13,034 | 1974 | 12,552 | 1973 | 12,103 | 1972 | 11,679 | 1971 | 11,261 | 1970 | 10,841 | 1969 | 10,427 | 1968 | 10,019 | 1967 | 9,628 | 1966 | 9,358 | 1965 | 9,212 | 1964 | 9,117 | 1963 | 9,074 | 1962 | 9,060 | 1961 | 9,054 | 1960 | 9,050 |
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