| Year | Value | | 2022 | 6,814,295 | | 2021 | 6,635,469 | | 2020 | 6,454,827 | | 2019 | 6,271,273 | | 2018 | 6,087,446 | | 2017 | 5,903,901 | | 2016 | 5,720,767 | | 2015 | 5,538,261 | | 2014 | 5,356,730 | | 2013 | 5,177,805 | | 2012 | 5,001,402 | | 2011 | 4,827,045 | | 2010 | 4,676,254 | | 2009 | 4,527,471 | | 2008 | 4,361,621 | | 2007 | 4,199,239 | | 2006 | 4,040,472 | | 2005 | 3,885,132 | | 2004 | 3,735,059 | | 2003 | 3,581,737 | | 2002 | 3,372,373 | | 2001 | 3,170,704 | | 2000 | 2,976,240 | | 1999 | 2,872,473 | | 1998 | 2,772,062 | | 1997 | 2,674,695 | | 1996 | 2,579,837 | | 1995 | 2,485,742 | | 1994 | 2,394,576 | | 1993 | 2,305,891 | | 1992 | 2,219,380 | | 1991 | 2,094,449 | | 1990 | 1,974,412 | | 1989 | 1,859,199 | | 1988 | 1,749,551 | | 1987 | 1,645,115 | | 1986 | 1,546,280 | | 1985 | 1,452,775 | | 1984 | 1,364,561 | | 1983 | 1,281,117 | | 1982 | 1,210,509 | | 1981 | 1,184,757 | | 1980 | 1,159,884 | | 1979 | 1,135,686 | | 1978 | 1,112,117 | | 1977 | 1,089,202 | | 1976 | 1,066,977 | | 1975 | 1,045,615 | | 1974 | 1,025,096 | | 1973 | 1,005,434 | | 1972 | 986,299 | | 1971 | 963,866 | | 1970 | 925,022 | | 1969 | 887,612 | | 1968 | 851,612 | | 1967 | 816,905 | | 1966 | 783,574 | | 1965 | 751,430 | | 1964 | 720,429 | | 1963 | 690,973 | | 1962 | 662,701 | | 1961 | 634,996 | | 1960 | 608,305 |
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