Year | Value | 2022 | 384,789 | 2021 | 396,065 | 2020 | 405,227 | 2019 | 414,631 | 2018 | 421,609 | 2017 | 423,827 | 2016 | 422,022 | 2015 | 417,328 | 2014 | 410,877 | 2013 | 405,303 | 2012 | 401,049 | 2011 | 397,909 | 2010 | 396,289 | 2009 | 396,839 | 2008 | 398,276 | 2007 | 398,428 | 2006 | 397,533 | 2005 | 395,375 | 2004 | 390,484 | 2003 | 384,562 | 2002 | 378,837 | 2001 | 371,586 | 2000 | 364,256 | 1999 | 358,238 | 1998 | 352,493 | 1997 | 347,499 | 1996 | 344,387 | 1995 | 341,265 | 1994 | 337,833 | 1993 | 336,968 | 1992 | 335,653 | 1991 | 330,664 | 1990 | 326,534 | 1989 | 323,304 | 1988 | 316,852 | 1987 | 309,267 | 1986 | 302,179 | 1985 | 294,737 | 1984 | 290,100 | 1983 | 289,953 | 1982 | 292,609 | 1981 | 297,867 | 1980 | 302,390 | 1979 | 303,076 | 1978 | 302,369 | 1977 | 303,185 | 1976 | 303,509 | 1975 | 298,240 | 1974 | 289,149 | 1973 | 286,540 | 1972 | 286,669 | 1971 | 288,073 | 1970 | 288,914 | 1969 | 290,958 | 1968 | 293,934 | 1967 | 293,674 | 1966 | 293,241 | 1965 | 294,205 | 1964 | 289,181 | 1963 | 277,577 | 1962 | 268,940 | 1961 | 261,958 | 1960 | 254,524 |
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