| Year | Value | | 2022 | 7,020,204 | | 2021 | 6,775,502 | | 2020 | 6,532,325 | | 2019 | 6,293,706 | | 2018 | 6,061,335 | | 2017 | 5,839,998 | | 2016 | 5,652,836 | | 2015 | 5,503,714 | | 2014 | 5,388,026 | | 2013 | 5,294,488 | | 2012 | 5,201,836 | | 2011 | 5,092,623 | | 2010 | 4,962,562 | | 2009 | 4,829,562 | | 2008 | 4,711,860 | | 2007 | 4,614,941 | | 2006 | 4,535,602 | | 2005 | 4,471,529 | | 2004 | 4,414,523 | | 2003 | 4,358,273 | | 2002 | 4,306,265 | | 2001 | 4,231,863 | | 2000 | 4,116,274 | | 1999 | 3,999,761 | | 1998 | 3,892,705 | | 1997 | 3,776,320 | | 1996 | 3,650,404 | | 1995 | 3,514,255 | | 1994 | 3,382,165 | | 1993 | 3,251,471 | | 1992 | 3,138,081 | | 1991 | 3,019,137 | | 1990 | 2,867,805 | | 1989 | 2,728,157 | | 1988 | 2,611,121 | | 1987 | 2,511,089 | | 1986 | 2,429,119 | | 1985 | 2,365,449 | | 1984 | 2,319,015 | | 1983 | 2,268,414 | | 1982 | 2,190,416 | | 1981 | 2,089,893 | | 1980 | 1,979,150 | | 1979 | 1,879,508 | | 1978 | 1,800,990 | | 1977 | 1,734,244 | | 1976 | 1,673,735 | | 1975 | 1,619,309 | | 1974 | 1,570,635 | | 1973 | 1,527,920 | | 1972 | 1,489,598 | | 1971 | 1,452,970 | | 1970 | 1,415,612 | | 1969 | 1,377,925 | | 1968 | 1,341,088 | | 1967 | 1,305,168 | | 1966 | 1,271,611 | | 1965 | 1,241,208 | | 1964 | 1,213,534 | | 1963 | 1,188,259 | | 1962 | 1,165,020 | | 1961 | 1,142,414 | | 1960 | 1,116,657 |
|