Year | Value | 2022 | 53,836 | 2021 | 55,682 | 2020 | 56,488 | 2019 | 56,100 | 2018 | 55,650 | 2017 | 55,248 | 2016 | 55,264 | 2015 | 55,841 | 2014 | 57,364 | 2013 | 60,057 | 2012 | 63,373 | 2011 | 66,319 | 2010 | 68,737 | 2009 | 70,442 | 2008 | 70,952 | 2007 | 71,712 | 2006 | 72,721 | 2005 | 74,183 | 2004 | 75,729 | 2003 | 77,261 | 2002 | 78,384 | 2001 | 78,906 | 2000 | 78,745 | 1999 | 77,898 | 1998 | 76,917 | 1997 | 76,088 | 1996 | 75,152 | 1995 | 74,038 | 1994 | 72,977 | 1993 | 72,514 | 1992 | 72,818 | 1991 | 73,928 | 1990 | 75,434 | 1989 | 76,638 | 1988 | 77,396 | 1987 | 77,592 | 1986 | 76,416 | 1985 | 74,831 | 1984 | 74,233 | 1983 | 74,166 | 1982 | 74,526 | 1981 | 76,164 | 1980 | 78,396 | 1979 | 80,008 | 1978 | 81,370 | 1977 | 82,445 | 1976 | 82,747 | 1975 | 82,600 | 1974 | 82,520 | 1973 | 81,732 | 1972 | 80,037 | 1971 | 77,634 | 1970 | 72,795 | 1969 | 67,676 | 1968 | 65,304 | 1967 | 64,147 | 1966 | 63,671 | 1965 | 64,973 | 1964 | 66,564 | 1963 | 66,156 | 1962 | 64,982 | 1961 | 64,565 | 1960 | 64,841 |
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