| Year | Value | | 2022 | 1,337,184 | | 2021 | 1,294,819 | | 2020 | 1,250,891 | | 2019 | 1,205,103 | | 2018 | 1,161,183 | | 2017 | 1,122,780 | | 2016 | 1,090,634 | | 2015 | 1,062,497 | | 2014 | 1,037,389 | | 2013 | 1,017,759 | | 2012 | 996,278 | | 2011 | 971,428 | | 2010 | 943,345 | | 2009 | 913,167 | | 2008 | 891,717 | | 2007 | 883,875 | | 2006 | 885,482 | | 2005 | 887,375 | | 2004 | 886,860 | | 2003 | 883,146 | | 2002 | 875,731 | | 2001 | 866,950 | | 2000 | 853,989 | | 1999 | 834,192 | | 1998 | 806,465 | | 1997 | 768,838 | | 1996 | 728,533 | | 1995 | 691,680 | | 1994 | 656,607 | | 1993 | 622,062 | | 1992 | 589,492 | | 1991 | 559,613 | | 1990 | 532,721 | | 1989 | 508,689 | | 1988 | 465,379 | | 1987 | 424,973 | | 1986 | 417,704 | | 1985 | 418,937 | | 1984 | 417,607 | | 1983 | 413,797 | | 1982 | 407,930 | | 1981 | 399,722 | | 1980 | 388,395 | | 1979 | 373,083 | | 1978 | 352,317 | | 1977 | 324,912 | | 1976 | 291,297 | | 1975 | 267,051 | | 1974 | 254,980 | | 1973 | 242,084 | | 1972 | 229,397 | | 1971 | 218,612 | | 1970 | 209,541 | | 1969 | 202,129 | | 1968 | 196,987 | | 1967 | 192,687 | | 1966 | 187,585 | | 1965 | 182,272 | | 1964 | 177,082 | | 1963 | 172,242 | | 1962 | 167,753 | | 1961 | 163,424 | | 1960 | 159,190 |
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