| Year | Value | | 2022 | 8,265,048 | | 2021 | 8,175,678 | | 2020 | 8,084,399 | | 2019 | 7,994,705 | | 2018 | 7,908,257 | | 2017 | 7,821,224 | | 2016 | 7,731,918 | | 2015 | 7,639,464 | | 2014 | 7,543,693 | | 2013 | 7,444,846 | | 2012 | 7,343,475 | | 2011 | 7,239,445 | | 2010 | 7,132,067 | | 2009 | 6,693,200 | | 2008 | 5,827,655 | | 2007 | 4,875,629 | | 2006 | 4,048,888 | | 2005 | 3,521,630 | | 2004 | 3,269,387 | | 2003 | 3,106,888 | | 2002 | 2,945,695 | | 2001 | 2,785,983 | | 2000 | 2,627,996 | | 1999 | 2,472,165 | | 1998 | 2,318,735 | | 1997 | 2,167,731 | | 1996 | 2,019,417 | | 1995 | 1,906,275 | | 1994 | 1,827,515 | | 1993 | 1,747,812 | | 1992 | 1,666,744 | | 1991 | 1,584,735 | | 1990 | 1,502,088 | | 1989 | 1,419,066 | | 1988 | 1,335,816 | | 1987 | 1,252,564 | | 1986 | 1,169,435 | | 1985 | 1,100,925 | | 1984 | 1,047,005 | | 1983 | 993,114 | | 1982 | 939,727 | | 1981 | 887,658 | | 1980 | 818,438 | | 1979 | 731,395 | | 1978 | 646,673 | | 1977 | 566,238 | | 1976 | 490,746 | | 1975 | 433,628 | | 1974 | 392,580 | | 1973 | 352,354 | | 1972 | 313,110 | | 1971 | 274,921 | | 1970 | 237,871 | | 1969 | 202,102 | | 1968 | 170,438 | | 1967 | 151,730 | | 1966 | 143,284 | | 1965 | 135,080 | | 1964 | 127,151 | | 1963 | 119,471 | | 1962 | 112,027 | | 1961 | 104,868 | | 1960 | 98,068 |
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