Year | Value | 2022 | 155,061 | 2021 | 153,124 | 2020 | 151,873 | 2019 | 148,508 | 2018 | 147,367 | 2017 | 147,715 | 2016 | 148,416 | 2015 | 148,981 | 2014 | 149,334 | 2013 | 149,748 | 2012 | 150,626 | 2011 | 150,778 | 2010 | 150,669 | 2009 | 150,847 | 2008 | 152,000 | 2007 | 153,948 | 2006 | 155,800 | 2005 | 156,501 | 2004 | 156,116 | 2003 | 153,752 | 2002 | 149,491 | 2001 | 145,170 | 2000 | 142,576 | 1999 | 139,844 | 1998 | 137,140 | 1997 | 134,181 | 1996 | 130,790 | 1995 | 127,353 | 1994 | 124,743 | 1993 | 123,043 | 1992 | 122,252 | 1991 | 121,328 | 1990 | 113,775 | 1989 | 108,856 | 1988 | 104,475 | 1987 | 100,937 | 1986 | 97,191 | 1985 | 94,904 | 1984 | 92,650 | 1983 | 90,506 | 1982 | 87,861 | 1981 | 84,807 | 1980 | 81,658 | 1979 | 79,348 | 1978 | 78,495 | 1977 | 77,947 | 1976 | 78,124 | 1975 | 79,169 | 1974 | 80,038 | 1973 | 80,797 | 1972 | 81,612 | 1971 | 82,274 | 1970 | 82,575 | 1969 | 82,633 | 1968 | 82,929 | 1967 | 82,828 | 1966 | 81,576 | 1965 | 80,259 | 1964 | 78,776 | 1963 | 76,512 | 1962 | 74,320 | 1961 | 72,119 | 1960 | 70,986 |
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