| Year | Value | | 2022 | 5,970,424 | | 2021 | 5,835,806 | | 2020 | 5,702,174 | | 2019 | 5,570,733 | | 2018 | 5,441,062 | | 2017 | 5,312,340 | | 2016 | 5,186,824 | | 2015 | 5,064,386 | | 2014 | 4,944,861 | | 2013 | 4,828,066 | | 2012 | 4,713,257 | | 2011 | 4,584,216 | | 2010 | 4,437,884 | | 2009 | 4,257,230 | | 2008 | 4,089,602 | | 2007 | 3,956,329 | | 2006 | 3,813,323 | | 2005 | 3,672,839 | | 2004 | 3,543,012 | | 2003 | 3,424,653 | | 2002 | 3,331,158 | | 2001 | 3,254,101 | | 2000 | 3,134,030 | | 1999 | 3,016,659 | | 1998 | 2,937,166 | | 1997 | 2,875,037 | | 1996 | 2,816,595 | | 1995 | 2,742,309 | | 1994 | 2,669,220 | | 1993 | 2,594,168 | | 1992 | 2,520,958 | | 1991 | 2,452,675 | | 1990 | 2,385,435 | | 1989 | 2,319,177 | | 1988 | 2,253,336 | | 1987 | 2,188,654 | | 1986 | 2,124,863 | | 1985 | 2,062,555 | | 1984 | 2,001,739 | | 1983 | 1,951,851 | | 1982 | 1,911,634 | | 1981 | 1,870,540 | | 1980 | 1,829,256 | | 1979 | 1,788,218 | | 1978 | 1,747,207 | | 1977 | 1,706,181 | | 1976 | 1,665,418 | | 1975 | 1,624,935 | | 1974 | 1,580,280 | | 1973 | 1,532,069 | | 1972 | 1,485,274 | | 1971 | 1,440,159 | | 1970 | 1,396,989 | | 1969 | 1,355,699 | | 1968 | 1,316,130 | | 1967 | 1,278,312 | | 1966 | 1,242,116 | | 1965 | 1,207,412 | | 1964 | 1,174,269 | | 1963 | 1,142,600 | | 1962 | 1,112,348 | | 1961 | 1,083,431 | | 1960 | 1,055,693 |
|