Year | Value | 2022 | 502,691 | 2021 | 499,938 | 2020 | 498,127 | 2019 | 496,633 | 2018 | 494,051 | 2017 | 490,016 | 2016 | 484,340 | 2015 | 476,249 | 2014 | 466,138 | 2013 | 455,467 | 2012 | 444,787 | 2011 | 434,018 | 2010 | 424,062 | 2009 | 413,941 | 2008 | 402,487 | 2007 | 390,522 | 2006 | 378,291 | 2005 | 366,167 | 2004 | 354,084 | 2003 | 342,006 | 2002 | 330,551 | 2001 | 320,431 | 2000 | 311,751 | 1999 | 304,475 | 1998 | 298,569 | 1997 | 293,419 | 1996 | 288,426 | 1995 | 283,630 | 1994 | 279,139 | 1993 | 274,755 | 1992 | 270,274 | 1991 | 265,785 | 1990 | 261,204 | 1989 | 256,464 | 1988 | 251,751 | 1987 | 247,006 | 1986 | 242,261 | 1985 | 237,534 | 1984 | 232,473 | 1983 | 227,088 | 1982 | 221,641 | 1981 | 215,905 | 1980 | 209,879 | 1979 | 203,732 | 1978 | 197,076 | 1977 | 191,187 | 1976 | 187,203 | 1975 | 184,377 | 1974 | 182,455 | 1973 | 181,690 | 1972 | 180,696 | 1971 | 178,412 | 1970 | 175,652 | 1969 | 172,933 | 1968 | 170,471 | 1967 | 168,132 | 1966 | 165,584 | 1965 | 162,548 | 1964 | 158,961 | 1963 | 154,880 | 1962 | 150,454 | 1961 | 146,026 | 1960 | 141,819 |
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