| Year | Value | | 2022 | 9,971,057 | | 2021 | 10,049,539 | | 2020 | 10,279,207 | | 2019 | 10,427,530 | | 2018 | 10,574,380 | | 2017 | 10,659,578 | | 2016 | 10,654,715 | | 2015 | 10,614,240 | | 2014 | 10,668,193 | | 2013 | 10,838,063 | | 2012 | 11,043,628 | | 2011 | 11,259,479 | | 2010 | 11,455,853 | | 2009 | 11,536,026 | | 2008 | 11,528,700 | | 2007 | 11,499,118 | | 2006 | 11,435,730 | | 2005 | 11,309,235 | | 2004 | 11,156,788 | | 2003 | 10,978,843 | | 2002 | 10,738,637 | | 2001 | 10,619,219 | | 2000 | 10,400,031 | | 1999 | 9,883,453 | | 1998 | 9,480,155 | | 1997 | 9,321,514 | | 1996 | 9,036,385 | | 1995 | 8,651,072 | | 1994 | 8,433,037 | | 1993 | 8,184,122 | | 1992 | 7,767,562 | | 1991 | 7,248,919 | | 1990 | 6,922,833 | | 1989 | 6,759,388 | | 1988 | 6,532,829 | | 1987 | 6,276,668 | | 1986 | 6,118,466 | | 1985 | 5,994,778 | | 1984 | 5,858,842 | | 1983 | 5,755,430 | | 1982 | 5,687,225 | | 1981 | 5,661,970 | | 1980 | 5,677,803 | | 1979 | 5,784,965 | | 1978 | 5,847,952 | | 1977 | 5,861,932 | | 1976 | 5,957,857 | | 1975 | 6,043,027 | | 1974 | 6,006,429 | | 1973 | 6,126,926 | | 1972 | 6,289,130 | | 1971 | 6,235,867 | | 1970 | 6,219,627 | | 1969 | 6,306,477 | | 1968 | 6,167,222 | | 1967 | 5,922,272 | | 1966 | 5,857,001 | | 1965 | 5,775,295 | | 1964 | 5,627,116 | | 1963 | 5,560,757 | | 1962 | 5,596,376 | | 1961 | 5,624,908 | | 1960 | 5,622,046 |
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