| Year | Value | | 2022 | 1,682,633 | | 2021 | 1,625,034 | | 2020 | 1,566,817 | | 2019 | 1,511,272 | | 2018 | 1,460,082 | | 2017 | 1,414,405 | | 2016 | 1,373,378 | | 2015 | 1,334,683 | | 2014 | 1,297,463 | | 2013 | 1,261,381 | | 2012 | 1,225,479 | | 2011 | 1,189,265 | | 2010 | 1,152,418 | | 2009 | 1,114,712 | | 2008 | 1,075,849 | | 2007 | 1,035,701 | | 2006 | 994,554 | | 2005 | 954,424 | | 2004 | 915,400 | | 2003 | 877,529 | | 2002 | 842,769 | | 2001 | 811,166 | | 2000 | 782,359 | | 1999 | 755,888 | | 1998 | 731,677 | | 1997 | 714,957 | | 1996 | 699,109 | | 1995 | 671,696 | | 1994 | 637,709 | | 1993 | 602,929 | | 1992 | 568,005 | | 1991 | 533,862 | | 1990 | 501,210 | | 1989 | 470,910 | | 1988 | 443,750 | | 1987 | 420,407 | | 1986 | 400,188 | | 1985 | 383,036 | | 1984 | 369,811 | | 1983 | 360,040 | | 1982 | 353,001 | | 1981 | 347,970 | | 1980 | 344,246 | | 1979 | 341,198 | | 1978 | 338,268 | | 1977 | 335,029 | | 1976 | 329,289 | | 1975 | 320,350 | | 1974 | 312,141 | | 1973 | 305,474 | | 1972 | 298,550 | | 1971 | 291,359 | | 1970 | 283,943 | | 1969 | 276,194 | | 1968 | 268,152 | | 1967 | 260,414 | | 1966 | 253,571 | | 1965 | 247,211 | | 1964 | 241,502 | | 1963 | 238,142 | | 1962 | 237,596 | | 1961 | 238,200 | | 1960 | 237,995 |
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