| Year | Value | | 2022 | 8,242,984 | | 2021 | 8,118,721 | | 2020 | 7,981,024 | | 2019 | 7,818,542 | | 2018 | 7,640,071 | | 2017 | 7,450,983 | | 2016 | 7,249,620 | | 2015 | 7,040,424 | | 2014 | 6,824,295 | | 2013 | 6,598,820 | | 2012 | 6,365,946 | | 2011 | 6,126,851 | | 2010 | 5,882,739 | | 2009 | 5,638,967 | | 2008 | 5,398,895 | | 2007 | 5,160,338 | | 2006 | 4,923,156 | | 2005 | 4,691,420 | | 2004 | 4,481,041 | | 2003 | 4,305,576 | | 2002 | 4,169,890 | | 2001 | 4,081,791 | | 2000 | 4,034,694 | | 1999 | 4,006,289 | | 1998 | 3,981,670 | | 1997 | 3,956,084 | | 1996 | 3,923,082 | | 1995 | 3,885,992 | | 1994 | 3,849,813 | | 1993 | 3,809,049 | | 1992 | 3,761,465 | | 1991 | 3,706,151 | | 1990 | 3,641,125 | | 1989 | 3,565,854 | | 1988 | 3,481,980 | | 1987 | 3,391,510 | | 1986 | 3,296,222 | | 1985 | 3,198,498 | | 1984 | 3,100,288 | | 1983 | 3,001,132 | | 1982 | 2,900,007 | | 1981 | 2,795,989 | | 1980 | 2,687,557 | | 1979 | 2,574,942 | | 1978 | 2,460,925 | | 1977 | 2,349,261 | | 1976 | 2,244,318 | | 1975 | 2,150,440 | | 1974 | 2,070,316 | | 1973 | 2,004,078 | | 1972 | 1,950,317 | | 1971 | 1,907,323 | | 1970 | 1,873,289 | | 1969 | 1,846,182 | | 1968 | 1,823,815 | | 1967 | 1,804,231 | | 1966 | 1,785,651 | | 1965 | 1,766,510 | | 1964 | 1,739,997 | | 1963 | 1,704,498 | | 1962 | 1,664,628 | | 1961 | 1,620,936 | | 1960 | 1,574,234 |
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