Year | Value | 2022 | 318,652 | 2021 | 319,584 | 2020 | 320,661 | 2019 | 321,833 | 2018 | 323,088 | 2017 | 323,775 | 2016 | 323,425 | 2015 | 321,961 | 2014 | 319,551 | 2013 | 316,275 | 2012 | 312,188 | 2011 | 307,508 | 2010 | 302,695 | 2009 | 298,047 | 2008 | 293,550 | 2007 | 289,388 | 2006 | 285,461 | 2005 | 281,447 | 2004 | 278,057 | 2003 | 275,216 | 2002 | 272,051 | 2001 | 268,640 | 2000 | 264,946 | 1999 | 260,734 | 1998 | 256,056 | 1997 | 250,814 | 1996 | 244,914 | 1995 | 237,924 | 1994 | 229,967 | 1993 | 221,825 | 1992 | 213,797 | 1991 | 206,017 | 1990 | 198,642 | 1989 | 191,919 | 1988 | 185,890 | 1987 | 180,518 | 1986 | 175,743 | 1985 | 171,371 | 1984 | 167,181 | 1983 | 163,037 | 1982 | 158,897 | 1981 | 154,755 | 1980 | 150,569 | 1979 | 146,440 | 1978 | 142,369 | 1977 | 138,330 | 1976 | 134,426 | 1975 | 130,704 | 1974 | 126,567 | 1973 | 121,507 | 1972 | 115,792 | 1971 | 109,383 | 1970 | 102,552 | 1969 | 96,397 | 1968 | 91,406 | 1967 | 87,514 | 1966 | 84,569 | 1965 | 82,110 | 1964 | 79,890 | 1963 | 77,889 | 1962 | 76,029 | 1961 | 74,282 | 1960 | 72,635 |
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