Year | Value | 2022 | 46,246 | 2021 | 45,724 | 2020 | 45,183 | 2019 | 44,667 | 2018 | 44,193 | 2017 | 43,730 | 2016 | 43,274 | 2015 | 42,829 | 2014 | 42,397 | 2013 | 41,979 | 2012 | 41,576 | 2011 | 41,208 | 2010 | 40,900 | 2009 | 40,624 | 2008 | 40,354 | 2007 | 40,090 | 2006 | 39,832 | 2005 | 39,576 | 2004 | 39,317 | 2003 | 39,045 | 2002 | 38,869 | 2001 | 38,770 | 2000 | 38,351 | 1999 | 37,869 | 1998 | 37,387 | 1997 | 36,899 | 1996 | 36,396 | 1995 | 35,869 | 1994 | 35,313 | 1993 | 34,723 | 1992 | 34,095 | 1991 | 33,422 | 1990 | 33,108 | 1989 | 33,118 | 1988 | 33,286 | 1987 | 33,476 | 1986 | 33,524 | 1985 | 33,368 | 1984 | 33,001 | 1983 | 32,475 | 1982 | 31,883 | 1981 | 31,402 | 1980 | 31,213 | 1979 | 31,278 | 1978 | 31,398 | 1977 | 31,501 | 1976 | 31,581 | 1975 | 31,638 | 1974 | 31,688 | 1973 | 31,736 | 1972 | 31,777 | 1971 | 31,808 | 1970 | 31,824 | 1969 | 31,712 | 1968 | 31,547 | 1967 | 31,332 | 1966 | 31,053 | 1965 | 30,719 | 1964 | 30,343 | 1963 | 29,932 | 1962 | 29,495 | 1961 | 29,022 | 1960 | 28,443 |
|