Year | Value | 2022 | 160,310 | 2021 | 159,721 | 2020 | 159,124 | 2019 | 156,347 | 2018 | 155,606 | 2017 | 155,582 | 2016 | 155,378 | 2015 | 154,549 | 2014 | 153,205 | 2013 | 151,044 | 2012 | 148,640 | 2011 | 145,856 | 2010 | 142,831 | 2009 | 139,331 | 2008 | 135,981 | 2007 | 133,007 | 2006 | 130,070 | 2005 | 127,123 | 2004 | 125,090 | 2003 | 123,628 | 2002 | 122,490 | 2001 | 121,056 | 2000 | 118,741 | 1999 | 114,589 | 1998 | 109,356 | 1997 | 103,082 | 1996 | 97,792 | 1995 | 94,623 | 1994 | 92,226 | 1993 | 89,761 | 1992 | 87,277 | 1991 | 83,956 | 1990 | 77,364 | 1989 | 74,544 | 1988 | 72,835 | 1987 | 72,499 | 1986 | 72,552 | 1985 | 73,543 | 1984 | 74,569 | 1983 | 75,994 | 1982 | 77,071 | 1981 | 78,115 | 1980 | 79,073 | 1979 | 79,333 | 1978 | 79,292 | 1977 | 78,605 | 1976 | 78,025 | 1975 | 77,542 | 1974 | 75,928 | 1973 | 73,528 | 1972 | 71,175 | 1971 | 69,275 | 1970 | 67,850 | 1969 | 67,147 | 1968 | 67,682 | 1967 | 68,593 | 1966 | 68,654 | 1965 | 68,474 | 1964 | 68,046 | 1963 | 66,929 | 1962 | 65,764 | 1961 | 64,214 | 1960 | 62,930 |
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