| Year | Value | | 2022 | 941,742 | | 2021 | 913,179 | | 2020 | 884,892 | | 2019 | 855,704 | | 2018 | 825,907 | | 2017 | 797,083 | | 2016 | 766,445 | | 2015 | 737,752 | | 2014 | 713,017 | | 2013 | 688,198 | | 2012 | 660,382 | | 2011 | 631,299 | | 2010 | 599,798 | | 2009 | 568,584 | | 2008 | 544,758 | | 2007 | 528,205 | | 2006 | 524,257 | | 2005 | 525,698 | | 2004 | 519,748 | | 2003 | 506,637 | | 2002 | 490,713 | | 2001 | 473,661 | | 2000 | 455,190 | | 1999 | 436,848 | | 1998 | 418,921 | | 1997 | 400,767 | | 1996 | 385,215 | | 1995 | 369,745 | | 1994 | 354,871 | | 1993 | 335,960 | | 1992 | 322,644 | | 1991 | 331,699 | | 1990 | 342,268 | | 1989 | 345,578 | | 1988 | 353,340 | | 1987 | 354,807 | | 1986 | 344,276 | | 1985 | 332,146 | | 1984 | 320,712 | | 1983 | 310,912 | | 1982 | 302,807 | | 1981 | 303,539 | | 1980 | 302,841 | | 1979 | 279,242 | | 1978 | 247,750 | | 1977 | 231,728 | | 1976 | 226,492 | | 1975 | 221,601 | | 1974 | 216,817 | | 1973 | 212,138 | | 1972 | 207,627 | | 1971 | 203,393 | | 1970 | 199,305 | | 1969 | 193,658 | | 1968 | 185,875 | | 1967 | 177,364 | | 1966 | 168,395 | | 1965 | 158,850 | | 1964 | 150,597 | | 1963 | 144,530 | | 1962 | 139,356 | | 1961 | 134,968 | | 1960 | 131,579 |
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