Year | Value | 2022 | 230,904 | 2021 | 235,255 | 2020 | 243,309 | 2019 | 254,514 | 2018 | 266,173 | 2017 | 278,679 | 2016 | 290,328 | 2015 | 300,369 | 2014 | 306,333 | 2013 | 308,760 | 2012 | 310,218 | 2011 | 308,752 | 2010 | 304,928 | 2009 | 296,621 | 2008 | 287,582 | 2007 | 275,808 | 2006 | 262,552 | 2005 | 251,917 | 2004 | 244,868 | 2003 | 237,566 | 2002 | 232,133 | 2001 | 223,169 | 2000 | 208,093 | 1999 | 189,711 | 1998 | 173,116 | 1997 | 158,822 | 1996 | 147,174 | 1995 | 135,485 | 1994 | 131,193 | 1993 | 129,051 | 1992 | 130,577 | 1991 | 134,592 | 1990 | 137,397 | 1989 | 139,461 | 1988 | 142,264 | 1987 | 145,448 | 1986 | 146,181 | 1985 | 146,901 | 1984 | 147,350 | 1983 | 145,174 | 1982 | 141,840 | 1981 | 139,539 | 1980 | 134,341 | 1979 | 128,234 | 1978 | 119,291 | 1977 | 115,234 | 1976 | 112,956 | 1975 | 111,719 | 1974 | 110,043 | 1973 | 106,832 | 1972 | 103,683 | 1971 | 100,850 | 1970 | 96,819 | 1969 | 92,075 | 1968 | 88,411 | 1967 | 85,003 | 1966 | 81,723 | 1965 | 80,017 | 1964 | 76,560 | 1963 | 72,499 | 1962 | 66,835 | 1961 | 60,561 | 1960 | 56,162 |
|