| Year | Value | | 2022 | 960,937 | | 2021 | 922,318 | | 2020 | 883,473 | | 2019 | 842,826 | | 2018 | 799,790 | | 2017 | 757,176 | | 2016 | 717,946 | | 2015 | 681,051 | | 2014 | 645,970 | | 2013 | 614,838 | | 2012 | 586,505 | | 2011 | 558,608 | | 2010 | 531,908 | | 2009 | 506,608 | | 2008 | 482,887 | | 2007 | 461,036 | | 2006 | 441,374 | | 2005 | 423,916 | | 2004 | 408,596 | | 2003 | 395,633 | | 2002 | 384,523 | | 2001 | 374,108 | | 2000 | 363,707 | | 1999 | 353,398 | | 1998 | 343,132 | | 1997 | 332,776 | | 1996 | 322,646 | | 1995 | 312,848 | | 1994 | 303,105 | | 1993 | 293,134 | | 1992 | 283,026 | | 1991 | 273,010 | | 1990 | 263,235 | | 1989 | 253,685 | | 1988 | 244,319 | | 1987 | 235,515 | | 1986 | 227,841 | | 1985 | 221,750 | | 1984 | 217,034 | | 1983 | 213,658 | | 1982 | 211,219 | | 1981 | 208,248 | | 1980 | 203,913 | | 1979 | 198,344 | | 1978 | 191,426 | | 1977 | 183,354 | | 1976 | 175,288 | | 1975 | 167,930 | | 1974 | 161,121 | | 1973 | 154,859 | | 1972 | 149,370 | | 1971 | 144,464 | | 1970 | 140,059 | | 1969 | 136,354 | | 1968 | 133,467 | | 1967 | 131,116 | | 1966 | 128,859 | | 1965 | 126,387 | | 1964 | 123,563 | | 1963 | 120,213 | | 1962 | 116,467 | | 1961 | 112,844 | | 1960 | 109,665 |
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