| Year | Value | | 2022 | 405,272 | | 2021 | 400,031 | | 2020 | 394,921 | | 2019 | 389,095 | | 2018 | 382,066 | | 2017 | 374,693 | | 2016 | 367,313 | | 2015 | 359,871 | | 2014 | 352,335 | | 2013 | 344,688 | | 2012 | 337,059 | | 2011 | 329,538 | | 2010 | 322,106 | | 2009 | 314,171 | | 2008 | 305,671 | | 2007 | 297,173 | | 2006 | 288,729 | | 2005 | 280,375 | | 2004 | 272,128 | | 2003 | 263,998 | | 2002 | 255,987 | | 2001 | 248,100 | | 2000 | 240,406 | | 1999 | 232,733 | | 1998 | 224,907 | | 1997 | 217,117 | | 1996 | 209,840 | | 1995 | 203,556 | | 1994 | 198,416 | | 1993 | 194,177 | | 1992 | 190,299 | | 1991 | 186,462 | | 1990 | 182,589 | | 1989 | 178,695 | | 1988 | 174,817 | | 1987 | 170,980 | | 1986 | 167,191 | | 1985 | 163,436 | | 1984 | 159,721 | | 1983 | 156,053 | | 1982 | 152,409 | | 1981 | 148,764 | | 1980 | 145,133 | | 1979 | 141,823 | | 1978 | 138,933 | | 1977 | 136,183 | | 1976 | 133,471 | | 1975 | 130,801 | | 1974 | 128,620 | | 1973 | 126,875 | | 1972 | 125,054 | | 1971 | 123,091 | | 1970 | 120,905 | | 1969 | 118,145 | | 1968 | 114,825 | | 1967 | 111,411 | | 1966 | 108,062 | | 1965 | 104,838 | | 1964 | 101,772 | | 1963 | 98,862 | | 1962 | 96,188 | | 1961 | 93,757 | | 1960 | 91,403 |
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