| Year | Value | | 2022 | 9,884,552 | | 2021 | 9,622,264 | | 2020 | 9,351,742 | | 2019 | 9,073,437 | | 2018 | 8,795,324 | | 2017 | 8,534,514 | | 2016 | 8,272,182 | | 2015 | 8,000,520 | | 2014 | 7,736,703 | | 2013 | 7,461,924 | | 2012 | 7,181,179 | | 2011 | 6,930,667 | | 2010 | 6,704,682 | | 2009 | 6,481,704 | | 2008 | 6,267,039 | | 2007 | 6,060,767 | | 2006 | 5,845,465 | | 2005 | 5,615,602 | | 2004 | 5,382,633 | | 2003 | 5,148,980 | | 2002 | 4,924,187 | | 2001 | 4,707,712 | | 2000 | 4,491,576 | | 1999 | 4,272,394 | | 1998 | 4,062,876 | | 1997 | 3,875,954 | | 1996 | 3,709,588 | | 1995 | 3,570,886 | | 1994 | 3,465,879 | | 1993 | 3,397,726 | | 1992 | 3,355,244 | | 1991 | 3,321,103 | | 1990 | 3,285,739 | | 1989 | 3,227,755 | | 1988 | 3,192,946 | | 1987 | 3,150,989 | | 1986 | 3,100,568 | | 1985 | 3,046,570 | | 1984 | 2,987,543 | | 1983 | 2,918,785 | | 1982 | 2,846,482 | | 1981 | 2,770,815 | | 1980 | 2,697,700 | | 1979 | 2,631,595 | | 1978 | 2,574,511 | | 1977 | 2,518,182 | | 1976 | 2,440,152 | | 1975 | 2,348,611 | | 1974 | 2,262,392 | | 1973 | 2,177,490 | | 1972 | 2,091,423 | | 1971 | 2,013,434 | | 1970 | 1,946,995 | | 1969 | 1,889,349 | | 1968 | 1,839,674 | | 1967 | 1,798,206 | | 1966 | 1,763,178 | | 1965 | 1,735,407 | | 1964 | 1,716,240 | | 1963 | 1,706,152 | | 1962 | 1,701,961 | | 1961 | 1,696,823 | | 1960 | 1,683,192 |
|