| Year | Value | | 2022 | 3,233,526 | | 2021 | 3,270,943 | | 2020 | 3,318,407 | | 2019 | 3,360,711 | | 2018 | 3,400,129 | | 2017 | 3,440,027 | | 2016 | 3,480,986 | | 2015 | 3,524,324 | | 2014 | 3,571,068 | | 2013 | 3,617,559 | | 2012 | 3,674,374 | | 2011 | 3,743,142 | | 2010 | 3,811,088 | | 2009 | 3,877,750 | | 2008 | 3,943,392 | | 2007 | 4,007,876 | | 2006 | 4,058,086 | | 2005 | 4,094,297 | | 2004 | 4,142,860 | | 2003 | 4,183,757 | | 2002 | 4,198,410 | | 2001 | 4,194,932 | | 2000 | 4,179,350 | | 1999 | 4,153,014 | | 1998 | 4,115,059 | | 1997 | 4,047,748 | | 1996 | 3,907,751 | | 1995 | 3,750,527 | | 1994 | 3,762,330 | | 1993 | 3,942,981 | | 1992 | 4,275,730 | | 1991 | 4,502,386 | | 1990 | 4,494,310 | | 1989 | 4,481,230 | | 1988 | 4,463,320 | | 1987 | 4,440,300 | | 1986 | 4,413,374 | | 1985 | 4,383,306 | | 1984 | 4,349,597 | | 1983 | 4,312,521 | | 1982 | 4,274,013 | | 1981 | 4,235,970 | | 1980 | 4,199,820 | | 1979 | 4,165,511 | | 1978 | 4,131,521 | | 1977 | 4,096,516 | | 1976 | 4,060,039 | | 1975 | 4,022,090 | | 1974 | 3,983,063 | | 1973 | 3,943,152 | | 1972 | 3,901,895 | | 1971 | 3,859,242 | | 1970 | 3,815,561 | | 1969 | 3,770,376 | | 1968 | 3,723,067 | | 1967 | 3,673,367 | | 1966 | 3,620,849 | | 1965 | 3,565,517 | | 1964 | 3,507,959 | | 1963 | 3,448,532 | | 1962 | 3,387,512 | | 1961 | 3,325,333 | | 1960 | 3,262,539 |
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