| Year | Value | | 2022 | 11,205,057 | | 2021 | 11,227,225 | | 2020 | 11,221,796 | | 2019 | 11,195,088 | | 2018 | 11,137,955 | | 2017 | 11,043,839 | | 2016 | 10,955,140 | | 2015 | 10,883,441 | | 2014 | 10,828,226 | | 2013 | 10,805,843 | | 2012 | 10,795,185 | | 2011 | 10,770,085 | | 2010 | 10,767,847 | | 2009 | 10,821,853 | | 2008 | 10,894,999 | | 2007 | 10,972,197 | | 2006 | 11,044,938 | | 2005 | 11,080,898 | | 2004 | 11,051,494 | | 2003 | 10,965,356 | | 2002 | 10,842,620 | | 2001 | 10,702,020 | | 2000 | 10,557,558 | | 1999 | 10,403,177 | | 1998 | 10,249,174 | | 1997 | 10,102,285 | | 1996 | 9,955,402 | | 1995 | 9,807,417 | | 1994 | 9,662,320 | | 1993 | 9,510,769 | | 1992 | 9,352,690 | | 1991 | 9,196,272 | | 1990 | 9,027,050 | | 1989 | 8,839,441 | | 1988 | 8,640,514 | | 1987 | 8,429,716 | | 1986 | 8,203,865 | | 1985 | 7,968,881 | | 1984 | 7,725,622 | | 1983 | 7,470,882 | | 1982 | 7,205,929 | | 1981 | 6,932,414 | | 1980 | 6,653,809 | | 1979 | 6,376,816 | | 1978 | 6,104,325 | | 1977 | 5,833,926 | | 1976 | 5,566,463 | | 1975 | 5,304,376 | | 1974 | 5,054,513 | | 1973 | 4,826,248 | | 1972 | 4,629,256 | | 1971 | 4,476,466 | | 1970 | 4,365,871 | | 1969 | 4,285,749 | | 1968 | 4,234,026 | | 1967 | 4,210,354 | | 1966 | 4,203,450 | | 1965 | 4,221,992 | | 1964 | 4,238,026 | | 1963 | 4,227,187 | | 1962 | 4,209,982 | | 1961 | 4,182,633 | | 1960 | 4,142,047 |
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