Year | Value | 2022 | 174,276 | 2021 | 171,368 | 2020 | 168,414 | 2019 | 162,491 | 2018 | 157,662 | 2017 | 152,947 | 2016 | 148,680 | 2015 | 145,476 | 2014 | 144,073 | 2013 | 145,191 | 2012 | 149,383 | 2011 | 154,834 | 2010 | 159,824 | 2009 | 162,862 | 2008 | 164,458 | 2007 | 164,719 | 2006 | 163,350 | 2005 | 161,091 | 2004 | 159,750 | 2003 | 158,918 | 2002 | 158,159 | 2001 | 158,286 | 2000 | 160,078 | 1999 | 160,561 | 1998 | 159,195 | 1997 | 155,531 | 1996 | 150,330 | 1995 | 144,827 | 1994 | 139,927 | 1993 | 135,627 | 1992 | 132,096 | 1991 | 129,269 | 1990 | 121,901 | 1989 | 119,594 | 1988 | 118,776 | 1987 | 119,461 | 1986 | 119,023 | 1985 | 117,743 | 1984 | 113,937 | 1983 | 108,442 | 1982 | 101,868 | 1981 | 96,537 | 1980 | 93,555 | 1979 | 92,242 | 1978 | 91,795 | 1977 | 90,376 | 1976 | 87,496 | 1975 | 83,384 | 1974 | 79,066 | 1973 | 76,085 | 1972 | 74,375 | 1971 | 73,613 | 1970 | 73,924 | 1969 | 75,005 | 1968 | 76,403 | 1967 | 77,613 | 1966 | 77,952 | 1965 | 77,844 | 1964 | 77,630 | 1963 | 77,239 | 1962 | 77,031 | 1961 | 76,416 | 1960 | 76,122 |
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