| Year | Value | | 2022 | 8,984,602 | | 2021 | 8,886,835 | | 2020 | 8,790,148 | | 2019 | 8,672,767 | | 2018 | 8,509,651 | | 2017 | 8,350,700 | | 2016 | 8,222,126 | | 2015 | 8,100,227 | | 2014 | 7,981,215 | | 2013 | 7,863,795 | | 2012 | 7,744,557 | | 2011 | 7,622,056 | | 2010 | 7,498,852 | | 2009 | 7,376,503 | | 2008 | 7,254,593 | | 2007 | 7,133,070 | | 2006 | 7,012,450 | | 2005 | 6,893,501 | | 2004 | 6,776,204 | | 2003 | 6,659,818 | | 2002 | 6,544,813 | | 2001 | 6,432,559 | | 2000 | 6,323,386 | | 1999 | 6,216,530 | | 1998 | 6,110,733 | | 1997 | 6,005,171 | | 1996 | 5,899,241 | | 1995 | 5,792,883 | | 1994 | 5,686,302 | | 1993 | 5,579,330 | | 1992 | 5,470,462 | | 1991 | 5,356,901 | | 1990 | 5,239,060 | | 1989 | 5,119,573 | | 1988 | 4,999,645 | | 1987 | 4,879,594 | | 1986 | 4,759,944 | | 1985 | 4,641,873 | | 1984 | 4,525,917 | | 1983 | 4,412,006 | | 1982 | 4,299,966 | | 1981 | 4,189,507 | | 1980 | 4,080,613 | | 1979 | 3,973,368 | | 1978 | 3,867,860 | | 1977 | 3,764,152 | | 1976 | 3,662,247 | | 1975 | 3,562,161 | | 1974 | 3,463,989 | | 1973 | 3,367,770 | | 1972 | 3,273,435 | | 1971 | 3,181,137 | | 1970 | 3,090,805 | | 1969 | 3,002,235 | | 1968 | 2,915,556 | | 1967 | 2,830,968 | | 1966 | 2,748,669 | | 1965 | 2,668,532 | | 1964 | 2,590,590 | | 1963 | 2,515,239 | | 1962 | 2,442,437 | | 1961 | 2,372,161 | | 1960 | 2,304,714 |
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