| Year | Value | | 2022 | 4,900,251 | | 2021 | 4,982,643 | | 2020 | 5,035,754 | | 2019 | 5,131,905 | | 2018 | 5,272,027 | | 2017 | 5,402,350 | | 2016 | 5,524,233 | | 2015 | 5,637,850 | | 2014 | 5,518,096 | | 2013 | 4,985,463 | | 2012 | 4,538,087 | | 2011 | 4,413,617 | | 2010 | 4,363,032 | | 2009 | 4,316,746 | | 2008 | 4,254,276 | | 2007 | 4,179,597 | | 2006 | 4,095,048 | | 2005 | 4,022,130 | | 2004 | 3,956,925 | | 2003 | 3,890,622 | | 2002 | 3,834,805 | | 2001 | 3,779,891 | | 2000 | 3,715,752 | | 1999 | 3,650,130 | | 1998 | 3,584,143 | | 1997 | 3,510,272 | | 1996 | 3,434,835 | | 1995 | 3,358,567 | | 1994 | 3,285,132 | | 1993 | 3,213,784 | | 1992 | 3,139,325 | | 1991 | 3,060,696 | | 1990 | 2,987,083 | | 1989 | 2,917,811 | | 1988 | 2,848,690 | | 1987 | 2,761,728 | | 1986 | 2,661,426 | | 1985 | 2,562,749 | | 1984 | 2,478,743 | | 1983 | 2,399,839 | | 1982 | 2,336,033 | | 1981 | 2,267,359 | | 1980 | 2,183,419 | | 1979 | 2,101,254 | | 1978 | 2,263,369 | | 1977 | 2,411,999 | | 1976 | 2,099,767 | | 1975 | 1,802,770 | | 1974 | 1,725,590 | | 1973 | 1,646,549 | | 1972 | 1,568,233 | | 1971 | 1,491,169 | | 1970 | 1,416,570 | | 1969 | 1,343,077 | | 1968 | 1,269,168 | | 1967 | 1,198,233 | | 1966 | 1,129,983 | | 1965 | 1,063,240 | | 1964 | 999,119 | | 1963 | 935,975 | | 1962 | 874,759 | | 1961 | 816,173 | | 1960 | 761,366 |
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