Year | Value | 2022 | 32,640 | 2021 | 32,867 | 2020 | 33,773 | 2019 | 34,627 | 2018 | 35,426 | 2017 | 36,161 | 2016 | 36,840 | 2015 | 37,458 | 2014 | 38,008 | 2013 | 38,486 | 2012 | 38,890 | 2011 | 39,219 | 2010 | 39,297 | 2009 | 39,173 | 2008 | 39,077 | 2007 | 38,975 | 2006 | 38,832 | 2005 | 38,654 | 2004 | 38,451 | 2003 | 38,216 | 2002 | 37,939 | 2001 | 37,600 | 2000 | 37,187 | 1999 | 36,636 | 1998 | 35,998 | 1997 | 35,281 | 1996 | 34,560 | 1995 | 33,832 | 1994 | 33,092 | 1993 | 32,334 | 1992 | 31,559 | 1991 | 30,769 | 1990 | 29,955 | 1989 | 29,114 | 1988 | 28,058 | 1987 | 26,735 | 1986 | 25,415 | 1985 | 24,135 | 1984 | 22,902 | 1983 | 21,727 | 1982 | 20,608 | 1981 | 19,541 | 1980 | 18,648 | 1979 | 18,161 | 1978 | 17,707 | 1977 | 17,262 | 1976 | 16,825 | 1975 | 16,399 | 1974 | 15,990 | 1973 | 15,623 | 1972 | 14,721 | 1971 | 13,846 | 1970 | 12,821 | 1969 | 11,506 | 1968 | 10,129 | 1967 | 8,967 | 1966 | 8,293 | 1965 | 7,745 | 1964 | 7,228 | 1963 | 6,741 | 1962 | 6,286 | 1961 | 5,864 | 1960 | 5,471 |
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