| Year | Value | | 2022 | 5,887,478 | | 2021 | 5,701,729 | | 2020 | 5,541,810 | | 2019 | 5,380,717 | | 2018 | 5,220,479 | | 2017 | 5,067,263 | | 2016 | 4,920,440 | | 2015 | 4,777,876 | | 2014 | 4,636,694 | | 2013 | 4,499,524 | | 2012 | 4,370,581 | | 2011 | 4,250,574 | | 2010 | 4,138,693 | | 2009 | 4,034,936 | | 2008 | 3,925,966 | | 2007 | 3,813,824 | | 2006 | 3,695,770 | | 2005 | 3,571,740 | | 2004 | 3,443,813 | | 2003 | 3,312,391 | | 2002 | 3,177,411 | | 2001 | 3,041,894 | | 2000 | 2,909,612 | | 1999 | 2,781,395 | | 1998 | 2,657,397 | | 1997 | 2,539,701 | | 1996 | 2,432,213 | | 1995 | 2,336,776 | | 1994 | 2,252,611 | | 1993 | 2,179,768 | | 1992 | 2,115,858 | | 1991 | 2,053,956 | | 1990 | 1,990,279 | | 1989 | 1,925,734 | | 1988 | 1,859,477 | | 1987 | 1,791,182 | | 1986 | 1,724,301 | | 1985 | 1,661,426 | | 1984 | 1,602,080 | | 1983 | 1,546,099 | | 1982 | 1,493,995 | | 1981 | 1,444,862 | | 1980 | 1,397,258 | | 1979 | 1,347,792 | | 1978 | 1,296,369 | | 1977 | 1,245,599 | | 1976 | 1,195,385 | | 1975 | 1,144,156 | | 1974 | 1,092,343 | | 1973 | 1,041,284 | | 1972 | 991,086 | | 1971 | 944,199 | | 1970 | 904,944 | | 1969 | 872,939 | | 1968 | 844,168 | | 1967 | 816,816 | | 1966 | 789,939 | | 1965 | 761,986 | | 1964 | 731,380 | | 1963 | 698,069 | | 1962 | 663,591 | | 1961 | 630,694 | | 1960 | 601,714 |
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