Year | Value | 2022 | 138,956 | 2021 | 140,863 | 2020 | 147,871 | 2019 | 150,080 | 2018 | 152,594 | 2017 | 154,904 | 2016 | 157,432 | 2015 | 159,118 | 2014 | 160,525 | 2013 | 160,591 | 2012 | 160,049 | 2011 | 157,964 | 2010 | 155,181 | 2009 | 153,168 | 2008 | 150,903 | 2007 | 147,721 | 2006 | 144,586 | 2005 | 138,098 | 2004 | 128,618 | 2003 | 122,260 | 2002 | 119,138 | 2001 | 118,153 | 2000 | 125,997 | 1999 | 133,262 | 1998 | 138,426 | 1997 | 141,687 | 1996 | 145,363 | 1995 | 149,718 | 1994 | 152,960 | 1993 | 154,622 | 1992 | 156,211 | 1991 | 160,594 | 1990 | 165,032 | 1989 | 166,271 | 1988 | 165,400 | 1987 | 163,314 | 1986 | 161,095 | 1985 | 158,737 | 1984 | 156,620 | 1983 | 155,532 | 1982 | 154,994 | 1981 | 154,320 | 1980 | 153,077 | 1979 | 149,571 | 1978 | 140,694 | 1977 | 126,311 | 1976 | 109,994 | 1975 | 96,620 | 1974 | 90,383 | 1973 | 92,867 | 1972 | 102,397 | 1971 | 114,731 | 1970 | 125,458 | 1969 | 132,329 | 1968 | 135,374 | 1967 | 135,807 | 1966 | 134,846 | 1965 | 133,092 | 1964 | 130,815 | 1963 | 128,082 | 1962 | 125,327 | 1961 | 123,157 | 1960 | 121,439 |
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