| Year | Value | | 2022 | 4,754,418 | | 2021 | 4,870,663 | | 2020 | 4,984,496 | | 2019 | 5,092,685 | | 2018 | 5,192,561 | | 2017 | 5,269,502 | | 2016 | 5,331,110 | | 2015 | 5,383,816 | | 2014 | 5,427,490 | | 2013 | 5,460,203 | | 2012 | 5,479,318 | | 2011 | 5,488,375 | | 2010 | 5,498,740 | | 2009 | 5,517,056 | | 2008 | 5,540,611 | | 2007 | 5,566,564 | | 2006 | 5,593,092 | | 2005 | 5,617,351 | | 2004 | 5,626,335 | | 2003 | 5,615,203 | | 2002 | 5,592,683 | | 2001 | 5,568,455 | | 2000 | 5,553,636 | | 1999 | 5,565,554 | | 1998 | 5,594,445 | | 1997 | 5,619,613 | | 1996 | 5,638,680 | | 1995 | 5,642,868 | | 1994 | 5,623,996 | | 1993 | 5,589,715 | | 1992 | 5,551,115 | | 1991 | 5,508,792 | | 1990 | 5,463,037 | | 1989 | 5,431,175 | | 1988 | 5,416,513 | | 1987 | 5,412,521 | | 1986 | 5,423,652 | | 1985 | 5,435,020 | | 1984 | 5,437,944 | | 1983 | 5,441,793 | | 1982 | 5,452,018 | | 1981 | 5,463,216 | | 1980 | 5,463,709 | | 1979 | 5,441,580 | | 1978 | 5,391,144 | | 1977 | 5,319,384 | | 1976 | 5,239,245 | | 1975 | 5,148,446 | | 1974 | 5,050,920 | | 1973 | 4,958,472 | | 1972 | 4,870,675 | | 1971 | 4,783,018 | | 1970 | 4,678,683 | | 1969 | 4,556,129 | | 1968 | 4,428,390 | | 1967 | 4,296,950 | | 1966 | 4,162,247 | | 1965 | 4,025,696 | | 1964 | 3,890,244 | | 1963 | 3,757,973 | | 1962 | 3,629,865 | | 1961 | 3,505,968 | | 1960 | 3,385,790 |
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