Year | Value | 2022 | 330,777 | 2021 | 323,375 | 2020 | 315,194 | 2019 | 307,275 | 2018 | 299,777 | 2017 | 292,517 | 2016 | 286,180 | 2015 | 280,882 | 2014 | 275,595 | 2013 | 268,982 | 2012 | 261,971 | 2011 | 284,004 | 2010 | 311,279 | 2009 | 315,323 | 2008 | 318,958 | 2007 | 322,011 | 2006 | 324,716 | 2005 | 325,729 | 2004 | 323,740 | 2003 | 318,920 | 2002 | 312,017 | 2001 | 303,443 | 2000 | 293,182 | 1999 | 287,047 | 1998 | 285,855 | 1997 | 284,329 | 1996 | 281,788 | 1995 | 277,778 | 1994 | 271,930 | 1993 | 264,712 | 1992 | 256,208 | 1991 | 247,368 | 1990 | 239,675 | 1989 | 233,469 | 1988 | 229,328 | 1987 | 228,221 | 1986 | 229,272 | 1985 | 230,526 | 1984 | 230,567 | 1983 | 226,441 | 1982 | 217,437 | 1981 | 205,153 | 1980 | 190,239 | 1979 | 173,950 | 1978 | 157,985 | 1977 | 143,222 | 1976 | 129,566 | 1975 | 116,918 | 1974 | 105,604 | 1973 | 96,076 | 1972 | 89,438 | 1971 | 85,633 | 1970 | 83,208 | 1969 | 81,850 | 1968 | 81,032 | 1967 | 80,661 | 1966 | 80,948 | 1965 | 81,064 | 1964 | 79,821 | 1963 | 77,771 | 1962 | 75,588 | 1961 | 72,923 | 1960 | 70,122 |
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