Year | Value | 2022 | 319,209 | 2021 | 321,146 | 2020 | 320,231 | 2019 | 320,604 | 2018 | 317,597 | 2017 | 312,345 | 2016 | 312,170 | 2015 | 313,311 | 2014 | 314,264 | 2013 | 314,194 | 2012 | 313,204 | 2011 | 310,902 | 2010 | 307,437 | 2009 | 303,174 | 2008 | 298,137 | 2007 | 292,236 | 2006 | 286,051 | 2005 | 280,493 | 2004 | 276,455 | 2003 | 274,003 | 2002 | 272,872 | 2001 | 272,473 | 2000 | 271,925 | 1999 | 270,748 | 1998 | 269,188 | 1997 | 267,653 | 1996 | 266,735 | 1995 | 266,977 | 1994 | 268,424 | 1993 | 270,281 | 1992 | 271,507 | 1991 | 271,807 | 1990 | 272,034 | 1989 | 270,816 | 1988 | 267,121 | 1987 | 261,791 | 1986 | 254,690 | 1985 | 245,914 | 1984 | 236,966 | 1983 | 228,199 | 1982 | 219,080 | 1981 | 210,377 | 1980 | 202,002 | 1979 | 193,379 | 1978 | 185,384 | 1977 | 178,736 | 1976 | 172,543 | 1975 | 166,700 | 1974 | 162,137 | 1973 | 158,075 | 1972 | 153,435 | 1971 | 148,492 | 1970 | 143,765 | 1969 | 140,156 | 1968 | 137,404 | 1967 | 134,926 | 1966 | 132,864 | 1965 | 131,269 | 1964 | 130,119 | 1963 | 129,517 | 1962 | 129,278 | 1961 | 128,933 | 1960 | 128,006 |
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