| Year | Value | | 2022 | 2,183,606 | | 2021 | 2,213,229 | | 2020 | 2,136,346 | | 2019 | 2,009,730 | | 2018 | 1,884,642 | | 2017 | 1,768,759 | | 2016 | 1,679,081 | | 2015 | 1,650,585 | | 2014 | 1,658,437 | | 2013 | 1,662,441 | | 2012 | 1,673,216 | | 2011 | 1,682,802 | | 2010 | 1,684,831 | | 2009 | 1,685,504 | | 2008 | 1,686,062 | | 2007 | 1,696,610 | | 2006 | 1,709,894 | | 2005 | 1,722,707 | | 2004 | 1,735,297 | | 2003 | 1,738,997 | | 2002 | 1,727,099 | | 2001 | 1,706,481 | | 2000 | 1,684,141 | | 1999 | 1,656,060 | | 1998 | 1,622,996 | | 1997 | 1,594,626 | | 1996 | 1,566,010 | | 1995 | 1,525,395 | | 1994 | 1,468,875 | | 1993 | 1,367,367 | | 1992 | 1,228,351 | | 1991 | 1,106,491 | | 1990 | 1,017,390 | | 1989 | 989,089 | | 1988 | 1,059,375 | | 1987 | 1,194,889 | | 1986 | 1,330,017 | | 1985 | 1,442,627 | | 1984 | 1,506,689 | | 1983 | 1,524,779 | | 1982 | 1,525,784 | | 1981 | 1,517,514 | | 1980 | 1,499,381 | | 1979 | 1,469,124 | | 1978 | 1,436,804 | | 1977 | 1,402,446 | | 1976 | 1,364,509 | | 1975 | 1,334,269 | | 1974 | 1,299,772 | | 1973 | 1,251,442 | | 1972 | 1,198,217 | | 1971 | 1,146,345 | | 1970 | 1,095,204 | | 1969 | 1,044,499 | | 1968 | 999,227 | | 1967 | 950,780 | | 1966 | 901,911 | | 1965 | 858,898 | | 1964 | 823,597 | | 1963 | 796,060 | | 1962 | 778,158 | | 1961 | 766,324 | | 1960 | 755,498 |
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