Year | Value | 2022 | 45,047 | 2021 | 46,601 | 2020 | 47,444 | 2019 | 47,436 | 2018 | 46,279 | 2017 | 44,291 | 2016 | 42,424 | 2015 | 41,038 | 2014 | 40,115 | 2013 | 39,276 | 2012 | 38,416 | 2011 | 37,522 | 2010 | 36,330 | 2009 | 34,781 | 2008 | 33,258 | 2007 | 31,893 | 2006 | 30,455 | 2005 | 28,929 | 2004 | 27,403 | 2003 | 25,927 | 2002 | 24,490 | 2001 | 23,120 | 2000 | 21,877 | 1999 | 20,765 | 1998 | 19,782 | 1997 | 18,936 | 1996 | 18,224 | 1995 | 17,614 | 1994 | 17,124 | 1993 | 16,761 | 1992 | 16,484 | 1991 | 16,281 | 1990 | 16,122 | 1989 | 15,970 | 1988 | 15,818 | 1987 | 15,701 | 1986 | 15,632 | 1985 | 15,617 | 1984 | 15,683 | 1983 | 15,775 | 1982 | 15,862 | 1981 | 15,951 | 1980 | 16,026 | 1979 | 16,105 | 1978 | 16,188 | 1977 | 16,247 | 1976 | 16,255 | 1975 | 16,178 | 1974 | 15,993 | 1973 | 15,752 | 1972 | 15,496 | 1971 | 15,211 | 1970 | 14,905 | 1969 | 14,646 | 1968 | 14,427 | 1967 | 14,202 | 1966 | 13,997 | 1965 | 13,809 | 1964 | 13,624 | 1963 | 13,460 | 1962 | 13,303 | 1961 | 13,096 | 1960 | 12,777 |
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