Year | Value | 2022 | 617,648 | 2021 | 617,772 | 2020 | 618,824 | 2019 | 618,695 | 2018 | 616,151 | 2017 | 611,769 | 2016 | 604,274 | 2015 | 592,159 | 2014 | 576,606 | 2013 | 558,911 | 2012 | 539,760 | 2011 | 519,638 | 2010 | 499,599 | 2009 | 481,936 | 2008 | 468,068 | 2007 | 458,850 | 2006 | 453,980 | 2005 | 451,839 | 2004 | 450,783 | 2003 | 451,183 | 2002 | 451,549 | 2001 | 450,584 | 2000 | 451,677 | 1999 | 457,602 | 1998 | 465,537 | 1997 | 474,934 | 1996 | 484,348 | 1995 | 490,338 | 1994 | 494,336 | 1993 | 496,366 | 1992 | 496,878 | 1991 | 494,848 | 1990 | 487,737 | 1989 | 474,568 | 1988 | 455,277 | 1987 | 431,117 | 1986 | 406,728 | 1985 | 387,111 | 1984 | 372,493 | 1983 | 360,087 | 1982 | 348,393 | 1981 | 337,139 | 1980 | 326,188 | 1979 | 315,579 | 1978 | 305,420 | 1977 | 296,121 | 1976 | 287,946 | 1975 | 280,743 | 1974 | 274,332 | 1973 | 268,540 | 1972 | 263,137 | 1971 | 257,966 | 1970 | 253,122 | 1969 | 248,836 | 1968 | 245,177 | 1967 | 241,918 | 1966 | 238,579 | 1965 | 234,605 | 1964 | 229,517 | 1963 | 223,060 | 1962 | 215,258 | 1961 | 206,315 | 1960 | 196,543 |
|