| Year | Value | | 2022 | 1,974,142 | | 2021 | 1,883,636 | | 2020 | 1,804,498 | | 2019 | 1,737,067 | | 2018 | 1,681,774 | | 2017 | 1,637,411 | | 2016 | 1,597,405 | | 2015 | 1,557,787 | | 2014 | 1,523,602 | | 2013 | 1,492,873 | | 2012 | 1,460,376 | | 2011 | 1,428,164 | | 2010 | 1,397,862 | | 2009 | 1,369,118 | | 2008 | 1,337,684 | | 2007 | 1,303,058 | | 2006 | 1,266,631 | | 2005 | 1,228,040 | | 2004 | 1,187,717 | | 2003 | 1,147,690 | | 2002 | 1,108,357 | | 2001 | 1,069,698 | | 2000 | 1,032,565 | | 1999 | 997,002 | | 1998 | 962,965 | | 1997 | 925,113 | | 1996 | 882,563 | | 1995 | 845,544 | | 1994 | 815,716 | | 1993 | 788,873 | | 1992 | 766,783 | | 1991 | 748,936 | | 1990 | 734,012 | | 1989 | 716,123 | | 1988 | 702,292 | | 1987 | 688,864 | | 1986 | 673,197 | | 1985 | 657,241 | | 1984 | 641,698 | | 1983 | 625,392 | | 1982 | 608,891 | | 1981 | 592,522 | | 1980 | 574,971 | | 1979 | 555,435 | | 1978 | 536,665 | | 1977 | 518,826 | | 1976 | 499,703 | | 1975 | 482,520 | | 1974 | 468,800 | | 1973 | 456,465 | | 1972 | 444,735 | | 1971 | 432,823 | | 1970 | 420,736 | | 1969 | 408,977 | | 1968 | 396,933 | | 1967 | 384,377 | | 1966 | 372,137 | | 1965 | 357,638 | | 1964 | 341,662 | | 1963 | 327,854 | | 1962 | 315,657 | | 1961 | 304,505 | | 1960 | 295,535 |
|