Year | Value | 2022 | 45,796 | 2021 | 46,203 | 2020 | 45,833 | 2019 | 45,041 | 2018 | 44,012 | 2017 | 42,937 | 2016 | 41,933 | 2015 | 40,937 | 2014 | 39,816 | 2013 | 38,691 | 2012 | 37,660 | 2011 | 36,729 | 2010 | 35,959 | 2009 | 35,103 | 2008 | 33,893 | 2007 | 32,231 | 2006 | 30,215 | 2005 | 28,185 | 2004 | 26,467 | 2003 | 25,023 | 2002 | 23,644 | 2001 | 22,415 | 2000 | 21,276 | 1999 | 20,151 | 1998 | 19,216 | 1997 | 18,745 | 1996 | 18,538 | 1995 | 18,429 | 1994 | 18,311 | 1993 | 18,015 | 1992 | 17,582 | 1991 | 16,966 | 1990 | 16,394 | 1989 | 16,011 | 1988 | 15,825 | 1987 | 15,976 | 1986 | 16,454 | 1985 | 17,043 | 1984 | 17,475 | 1983 | 17,581 | 1982 | 17,369 | 1981 | 16,801 | 1980 | 15,978 | 1979 | 15,015 | 1978 | 14,082 | 1977 | 13,358 | 1976 | 12,787 | 1975 | 12,459 | 1974 | 12,369 | 1973 | 12,406 | 1972 | 12,411 | 1971 | 12,254 | 1970 | 11,907 | 1969 | 11,445 | 1968 | 10,945 | 1967 | 10,443 | 1966 | 9,988 | 1965 | 9,625 | 1964 | 9,371 | 1963 | 9,218 | 1962 | 9,082 | 1961 | 8,833 | 1960 | 8,656 |
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