Year | Value | 2022 | 112,585 | 2021 | 115,041 | 2020 | 122,334 | 2019 | 126,094 | 2018 | 129,906 | 2017 | 133,651 | 2016 | 137,725 | 2015 | 140,622 | 2014 | 142,935 | 2013 | 144,189 | 2012 | 144,950 | 2011 | 145,248 | 2010 | 144,967 | 2009 | 144,215 | 2008 | 143,497 | 2007 | 142,886 | 2006 | 142,438 | 2005 | 141,672 | 2004 | 140,749 | 2003 | 140,638 | 2002 | 141,471 | 2001 | 143,570 | 2000 | 152,128 | 1999 | 155,709 | 1998 | 157,672 | 1997 | 159,223 | 1996 | 161,516 | 1995 | 165,916 | 1994 | 169,776 | 1993 | 170,082 | 1992 | 171,433 | 1991 | 178,769 | 1990 | 185,052 | 1989 | 186,738 | 1988 | 187,342 | 1987 | 187,427 | 1986 | 185,445 | 1985 | 181,804 | 1984 | 178,989 | 1983 | 176,052 | 1982 | 171,985 | 1981 | 167,550 | 1980 | 160,938 | 1979 | 151,441 | 1978 | 143,108 | 1977 | 137,945 | 1976 | 136,259 | 1975 | 138,621 | 1974 | 144,041 | 1973 | 149,920 | 1972 | 155,115 | 1971 | 159,494 | 1970 | 163,377 | 1969 | 166,974 | 1968 | 170,182 | 1967 | 173,055 | 1966 | 175,560 | 1965 | 177,414 | 1964 | 178,345 | 1963 | 178,071 | 1962 | 176,709 | 1961 | 174,878 | 1960 | 173,291 |
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