| Year | Value | | 2022 | 4,802,329 | | 2021 | 4,460,195 | | 2020 | 4,226,291 | | 2019 | 4,111,835 | | 2018 | 3,954,915 | | 2017 | 3,775,955 | | 2016 | 3,688,393 | | 2015 | 3,609,435 | | 2014 | 3,486,235 | | 2013 | 3,424,006 | | 2012 | 3,405,234 | | 2011 | 3,381,790 | | 2010 | 3,399,915 | | 2009 | 3,504,106 | | 2008 | 3,554,784 | | 2007 | 3,545,384 | | 2006 | 3,529,568 | | 2005 | 3,427,176 | | 2004 | 3,243,164 | | 2003 | 3,141,442 | | 2002 | 3,106,151 | | 2001 | 3,010,872 | | 2000 | 2,977,707 | | 1999 | 3,016,341 | | 1998 | 2,939,478 | | 1997 | 2,800,751 | | 1996 | 2,734,492 | | 1995 | 2,654,759 | | 1994 | 2,543,263 | | 1993 | 2,473,416 | | 1992 | 2,460,123 | | 1991 | 2,431,176 | | 1990 | 2,387,795 | | 1989 | 2,346,496 | | 1988 | 2,304,366 | | 1987 | 2,255,066 | | 1986 | 2,178,326 | | 1985 | 2,108,363 | | 1984 | 2,059,799 | | 1983 | 1,992,596 | | 1982 | 1,935,859 | | 1981 | 1,895,303 | | 1980 | 1,840,663 | | 1979 | 1,791,357 | | 1978 | 1,766,137 | | 1977 | 1,726,810 | | 1976 | 1,685,847 | | 1975 | 1,672,724 | | 1974 | 1,656,764 | | 1973 | 1,628,191 | | 1972 | 1,593,598 | | 1971 | 1,568,421 | | 1970 | 1,546,609 | | 1969 | 1,532,726 | | 1968 | 1,537,121 | | 1967 | 1,546,220 | | 1966 | 1,534,159 | | 1965 | 1,509,524 | | 1964 | 1,487,650 | | 1963 | 1,464,525 | | 1962 | 1,440,973 | | 1961 | 1,413,009 | | 1960 | 1,377,026 |
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