Year | Value | 2022 | 48,285 | 2021 | 48,812 | 2020 | 49,236 | 2019 | 48,874 | 2018 | 47,913 | 2017 | 46,883 | 2016 | 45,787 | 2015 | 44,703 | 2014 | 43,612 | 2013 | 42,449 | 2012 | 41,233 | 2011 | 39,978 | 2010 | 38,755 | 2009 | 37,553 | 2008 | 36,364 | 2007 | 35,217 | 2006 | 34,050 | 2005 | 32,857 | 2004 | 31,659 | 2003 | 30,417 | 2002 | 29,163 | 2001 | 27,969 | 2000 | 26,891 | 1999 | 25,970 | 1998 | 25,217 | 1997 | 24,621 | 1996 | 24,139 | 1995 | 23,712 | 1994 | 23,317 | 1993 | 22,975 | 1992 | 22,658 | 1991 | 22,281 | 1990 | 21,765 | 1989 | 21,075 | 1988 | 20,168 | 1987 | 19,092 | 1986 | 17,991 | 1985 | 16,964 | 1984 | 16,008 | 1983 | 15,122 | 1982 | 14,336 | 1981 | 13,625 | 1980 | 12,975 | 1979 | 12,413 | 1978 | 11,898 | 1977 | 11,399 | 1976 | 10,931 | 1975 | 10,467 | 1974 | 10,010 | 1973 | 9,555 | 1972 | 9,099 | 1971 | 8,668 | 1970 | 8,267 | 1969 | 7,890 | 1968 | 7,532 | 1967 | 7,183 | 1966 | 6,851 | 1965 | 6,538 | 1964 | 6,241 | 1963 | 5,961 | 1962 | 5,701 | 1961 | 5,458 | 1960 | 5,232 |
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