Year | Value | 2022 | 149,996 | 2021 | 152,369 | 2020 | 154,947 | 2019 | 157,441 | 2018 | 159,336 | 2017 | 160,175 | 2016 | 159,664 | 2015 | 157,980 | 2014 | 155,909 | 2013 | 153,822 | 2012 | 152,088 | 2011 | 150,831 | 2010 | 148,703 | 2009 | 146,833 | 2008 | 145,880 | 2007 | 144,056 | 2006 | 141,239 | 2005 | 137,658 | 2004 | 134,192 | 2003 | 131,897 | 2002 | 129,205 | 2001 | 129,047 | 2000 | 133,860 | 1999 | 139,428 | 1998 | 144,472 | 1997 | 146,956 | 1996 | 146,306 | 1995 | 145,139 | 1994 | 144,630 | 1993 | 144,299 | 1992 | 143,912 | 1991 | 144,403 | 1990 | 145,400 | 1989 | 146,937 | 1988 | 149,254 | 1987 | 151,456 | 1986 | 152,662 | 1985 | 152,711 | 1984 | 151,940 | 1983 | 151,159 | 1982 | 150,101 | 1981 | 148,629 | 1980 | 148,041 | 1979 | 147,851 | 1978 | 148,341 | 1977 | 149,459 | 1976 | 149,399 | 1975 | 149,129 | 1974 | 148,351 | 1973 | 146,912 | 1972 | 147,710 | 1971 | 147,389 | 1970 | 144,739 | 1969 | 142,581 | 1968 | 140,298 | 1967 | 138,140 | 1966 | 136,682 | 1965 | 135,266 | 1964 | 133,148 | 1963 | 130,860 | 1962 | 128,414 | 1961 | 126,125 | 1960 | 124,826 |
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