| Year | Value | | 2022 | 3,734,796 | | 2021 | 3,682,483 | | 2020 | 3,629,574 | | 2019 | 3,575,847 | | 2018 | 3,522,442 | | 2017 | 3,469,110 | | 2016 | 3,415,910 | | 2015 | 3,364,007 | | 2014 | 3,317,084 | | 2013 | 3,273,809 | | 2012 | 3,230,068 | | 2011 | 3,186,018 | | 2010 | 3,141,557 | | 2009 | 3,096,726 | | 2008 | 3,051,630 | | 2007 | 3,006,220 | | 2006 | 2,960,629 | | 2005 | 2,915,416 | | 2004 | 2,873,441 | | 2003 | 2,833,564 | | 2002 | 2,792,055 | | 2001 | 2,749,003 | | 2000 | 2,704,952 | | 1999 | 2,660,061 | | 1998 | 2,613,956 | | 1997 | 2,566,184 | | 1996 | 2,513,639 | | 1995 | 2,456,528 | | 1994 | 2,397,961 | | 1993 | 2,337,824 | | 1992 | 2,276,927 | | 1991 | 2,216,230 | | 1990 | 2,156,074 | | 1989 | 2,096,811 | | 1988 | 2,038,768 | | 1987 | 1,982,475 | | 1986 | 1,928,218 | | 1985 | 1,876,227 | | 1984 | 1,826,793 | | 1983 | 1,780,139 | | 1982 | 1,736,451 | | 1981 | 1,696,411 | | 1980 | 1,660,882 | | 1979 | 1,630,063 | | 1978 | 1,603,070 | | 1977 | 1,577,770 | | 1976 | 1,551,730 | | 1975 | 1,522,925 | | 1974 | 1,490,881 | | 1973 | 1,456,655 | | 1972 | 1,421,979 | | 1971 | 1,388,065 | | 1970 | 1,355,114 | | 1969 | 1,323,257 | | 1968 | 1,292,391 | | 1967 | 1,262,425 | | 1966 | 1,233,457 | | 1965 | 1,205,244 | | 1964 | 1,177,722 | | 1963 | 1,151,002 | | 1962 | 1,124,969 | | 1961 | 1,099,630 | | 1960 | 1,074,999 |
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