Year | Value | 2022 | 161,147 | 2021 | 156,415 | 2020 | 153,503 | 2019 | 151,893 | 2018 | 151,791 | 2017 | 152,943 | 2016 | 154,866 | 2015 | 157,205 | 2014 | 159,654 | 2013 | 161,785 | 2012 | 163,136 | 2011 | 162,926 | 2010 | 161,512 | 2009 | 159,517 | 2008 | 153,744 | 2007 | 144,933 | 2006 | 137,361 | 2005 | 129,650 | 2004 | 121,042 | 2003 | 116,724 | 2002 | 116,818 | 2001 | 116,945 | 2000 | 116,176 | 1999 | 114,464 | 1998 | 112,078 | 1997 | 109,317 | 1996 | 106,714 | 1995 | 104,488 | 1994 | 102,629 | 1993 | 101,358 | 1992 | 99,083 | 1991 | 96,707 | 1990 | 95,385 | 1989 | 94,012 | 1988 | 91,608 | 1987 | 87,480 | 1986 | 83,859 | 1985 | 81,072 | 1984 | 78,067 | 1983 | 74,123 | 1982 | 70,723 | 1981 | 68,982 | 1980 | 74,575 | 1979 | 80,625 | 1978 | 78,633 | 1977 | 76,216 | 1976 | 75,113 | 1975 | 73,731 | 1974 | 71,551 | 1973 | 68,563 | 1972 | 64,780 | 1971 | 61,007 | 1970 | 57,750 | 1969 | 55,384 | 1968 | 53,862 | 1967 | 52,801 | 1966 | 51,881 | 1965 | 50,915 | 1964 | 50,012 | 1963 | 49,235 | 1962 | 48,499 | 1961 | 47,770 | 1960 | 47,029 |
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