Year | Value | 2022 | 43,418 | 2021 | 45,154 | 2020 | 47,230 | 2019 | 48,993 | 2018 | 50,106 | 2017 | 50,350 | 2016 | 49,624 | 2015 | 48,513 | 2014 | 47,927 | 2013 | 48,554 | 2012 | 50,014 | 2011 | 51,674 | 2010 | 53,246 | 2009 | 53,878 | 2008 | 53,275 | 2007 | 51,917 | 2006 | 50,494 | 2005 | 49,662 | 2004 | 49,445 | 2003 | 48,989 | 2002 | 48,343 | 2001 | 48,411 | 2000 | 49,231 | 1999 | 51,039 | 1998 | 54,306 | 1997 | 59,148 | 1996 | 65,117 | 1995 | 71,676 | 1994 | 78,309 | 1993 | 84,897 | 1992 | 91,542 | 1991 | 96,951 | 1990 | 100,075 | 1989 | 101,917 | 1988 | 102,535 | 1987 | 101,081 | 1986 | 98,276 | 1985 | 95,507 | 1984 | 92,719 | 1983 | 89,499 | 1982 | 86,903 | 1981 | 85,531 | 1980 | 84,930 | 1979 | 84,814 | 1978 | 84,898 | 1977 | 85,073 | 1976 | 85,449 | 1975 | 85,609 | 1974 | 85,157 | 1973 | 84,298 | 1972 | 83,104 | 1971 | 81,451 | 1970 | 79,742 | 1969 | 78,769 | 1968 | 78,825 | 1967 | 79,629 | 1966 | 81,263 | 1965 | 83,321 | 1964 | 84,705 | 1963 | 85,089 | 1962 | 84,637 | 1961 | 83,320 | 1960 | 81,607 |
|