Year | Value | 2022 | 320,222 | 2021 | 324,088 | 2020 | 327,277 | 2019 | 330,577 | 2018 | 332,416 | 2017 | 331,225 | 2016 | 327,093 | 2015 | 320,809 | 2014 | 312,340 | 2013 | 302,061 | 2012 | 292,438 | 2011 | 283,917 | 2010 | 275,755 | 2009 | 268,189 | 2008 | 260,957 | 2007 | 255,092 | 2006 | 250,218 | 2005 | 246,778 | 2004 | 244,965 | 2003 | 244,551 | 2002 | 244,601 | 2001 | 245,173 | 2000 | 245,352 | 1999 | 244,054 | 1998 | 241,881 | 1997 | 238,435 | 1996 | 233,465 | 1995 | 227,002 | 1994 | 219,703 | 1993 | 211,952 | 1992 | 204,888 | 1991 | 200,219 | 1990 | 197,766 | 1989 | 196,048 | 1988 | 194,891 | 1987 | 194,297 | 1986 | 193,475 | 1985 | 192,637 | 1984 | 192,084 | 1983 | 191,353 | 1982 | 190,316 | 1981 | 189,510 | 1980 | 188,836 | 1979 | 188,045 | 1978 | 187,604 | 1977 | 187,522 | 1976 | 187,936 | 1975 | 188,074 | 1974 | 184,954 | 1973 | 178,531 | 1972 | 171,557 | 1971 | 164,512 | 1970 | 158,364 | 1969 | 157,307 | 1968 | 161,029 | 1967 | 166,077 | 1966 | 171,183 | 1965 | 175,820 | 1964 | 178,853 | 1963 | 180,373 | 1962 | 180,841 | 1961 | 180,437 | 1960 | 179,891 |
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