| Year | Value | | 2022 | 5,220,537 | | 2021 | 5,042,529 | | 2020 | 4,869,400 | | 2019 | 4,700,302 | | 2018 | 4,537,328 | | 2017 | 4,381,346 | | 2016 | 4,230,727 | | 2015 | 4,085,492 | | 2014 | 3,948,091 | | 2013 | 3,819,098 | | 2012 | 3,695,666 | | 2011 | 3,575,843 | | 2010 | 3,458,976 | | 2009 | 3,346,220 | | 2008 | 3,237,696 | | 2007 | 3,133,543 | | 2006 | 3,036,092 | | 2005 | 2,948,327 | | 2004 | 2,865,471 | | 2003 | 2,780,629 | | 2002 | 2,695,142 | | 2001 | 2,630,334 | | 2000 | 2,573,538 | | 1999 | 2,501,110 | | 1998 | 2,423,579 | | 1997 | 2,356,920 | | 1996 | 2,287,263 | | 1995 | 2,201,295 | | 1994 | 2,119,230 | | 1993 | 2,035,617 | | 1992 | 1,954,076 | | 1991 | 1,873,047 | | 1990 | 1,780,813 | | 1989 | 1,702,234 | | 1988 | 1,641,272 | | 1987 | 1,581,970 | | 1986 | 1,525,488 | | 1985 | 1,472,583 | | 1984 | 1,423,233 | | 1983 | 1,377,194 | | 1982 | 1,314,090 | | 1981 | 1,241,672 | | 1980 | 1,174,381 | | 1979 | 1,111,383 | | 1978 | 1,052,615 | | 1977 | 997,494 | | 1976 | 945,306 | | 1975 | 895,349 | | 1974 | 847,538 | | 1973 | 801,604 | | 1972 | 757,573 | | 1971 | 715,245 | | 1970 | 674,609 | | 1969 | 635,707 | | 1968 | 598,549 | | 1967 | 563,336 | | 1966 | 530,215 | | 1965 | 499,014 | | 1964 | 469,636 | | 1963 | 441,950 | | 1962 | 415,881 | | 1961 | 391,359 | | 1960 | 368,281 |
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