Year | Value | 2022 | 59,568 | 2021 | 59,262 | 2020 | 59,133 | 2019 | 58,968 | 2018 | 58,980 | 2017 | 59,043 | 2016 | 59,093 | 2015 | 59,107 | 2014 | 59,117 | 2013 | 59,152 | 2012 | 59,208 | 2011 | 59,280 | 2010 | 59,338 | 2009 | 59,333 | 2008 | 59,247 | 2007 | 59,036 | 2006 | 58,620 | 2005 | 57,971 | 2004 | 57,106 | 2003 | 56,032 | 2002 | 54,742 | 2001 | 53,250 | 2000 | 51,583 | 1999 | 49,758 | 1998 | 47,745 | 1997 | 45,772 | 1996 | 44,274 | 1995 | 43,427 | 1994 | 43,175 | 1993 | 43,596 | 1992 | 44,402 | 1991 | 44,885 | 1990 | 44,695 | 1989 | 43,905 | 1988 | 42,493 | 1987 | 40,617 | 1986 | 38,828 | 1985 | 37,424 | 1984 | 36,334 | 1983 | 35,542 | 1982 | 35,022 | 1981 | 34,505 | 1980 | 33,871 | 1979 | 33,178 | 1978 | 32,423 | 1977 | 31,598 | 1976 | 30,784 | 1975 | 30,034 | 1974 | 29,326 | 1973 | 28,653 | 1972 | 28,028 | 1971 | 27,428 | 1970 | 26,840 | 1969 | 26,269 | 1968 | 25,713 | 1967 | 25,172 | 1966 | 24,653 | 1965 | 24,161 | 1964 | 23,695 | 1963 | 23,261 | 1962 | 22,853 | 1961 | 22,457 | 1960 | 22,065 |
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