| Year | Value | | 2022 | 11,535,377 | | 2021 | 11,139,734 | | 2020 | 10,766,019 | | 2019 | 10,435,293 | | 2018 | 10,137,211 | | 2017 | 9,851,350 | | 2016 | 9,577,526 | | 2015 | 9,299,417 | | 2014 | 9,006,493 | | 2013 | 8,704,381 | | 2012 | 8,414,439 | | 2011 | 8,140,130 | | 2010 | 7,855,813 | | 2009 | 7,556,373 | | 2008 | 7,252,508 | | 2007 | 6,948,110 | | 2006 | 6,669,770 | | 2005 | 6,427,860 | | 2004 | 6,207,502 | | 2003 | 6,008,436 | | 2002 | 5,818,110 | | 2001 | 5,612,448 | | 2000 | 5,390,374 | | 1999 | 5,163,560 | | 1998 | 4,944,956 | | 1997 | 4,744,618 | | 1996 | 4,556,934 | | 1995 | 4,371,187 | | 1994 | 4,182,975 | | 1993 | 3,985,878 | | 1992 | 3,793,914 | | 1991 | 3,629,157 | | 1990 | 3,506,388 | | 1989 | 3,387,141 | | 1988 | 3,315,120 | | 1987 | 3,267,827 | | 1986 | 3,229,026 | | 1985 | 3,195,020 | | 1984 | 3,163,113 | | 1983 | 3,121,959 | | 1982 | 3,073,448 | | 1981 | 3,028,138 | | 1980 | 2,980,606 | | 1979 | 2,921,599 | | 1978 | 2,862,197 | | 1977 | 2,804,270 | | 1976 | 2,729,823 | | 1975 | 2,650,457 | | 1974 | 2,579,811 | | 1973 | 2,508,726 | | 1972 | 2,435,709 | | 1971 | 2,365,192 | | 1970 | 2,297,290 | | 1969 | 2,230,571 | | 1968 | 2,162,724 | | 1967 | 2,095,388 | | 1966 | 2,033,023 | | 1965 | 1,979,618 | | 1964 | 1,934,295 | | 1963 | 1,895,272 | | 1962 | 1,860,596 | | 1961 | 1,828,528 | | 1960 | 1,799,282 |
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