Year | Value | 2022 | 23,639,003 | 2021 | 23,971,417 | 2020 | 24,310,611 | 2019 | 24,626,507 | 2018 | 24,852,833 | 2017 | 25,011,063 | 2016 | 25,162,729 | 2015 | 25,284,185 | 2014 | 25,367,569 | 2013 | 25,451,786 | 2012 | 25,530,417 | 2011 | 25,598,914 | 2010 | 25,682,521 | 2009 | 25,804,079 | 2008 | 25,917,777 | 2007 | 26,051,290 | 2006 | 26,212,797 | 2005 | 26,389,222 | 2004 | 26,567,354 | 2003 | 26,746,585 | 2002 | 26,900,711 | 2001 | 27,009,286 | 2000 | 27,095,378 | 1999 | 27,179,662 | 1998 | 27,253,335 | 1997 | 27,297,881 | 1996 | 27,325,640 | 1995 | 27,333,935 | 1994 | 27,313,367 | 1993 | 27,275,922 | 1992 | 27,231,300 | 1991 | 27,166,194 | 1990 | 27,070,534 | 1989 | 26,969,212 | 1988 | 26,869,375 | 1987 | 26,761,510 | 1986 | 26,645,410 | 1985 | 26,499,336 | 1984 | 26,304,116 | 1983 | 26,065,425 | 1982 | 25,793,016 | 1981 | 25,492,119 | 1980 | 25,158,033 | 1979 | 24,789,685 | 1978 | 24,402,129 | 1977 | 24,010,235 | 1976 | 23,627,881 | 1975 | 23,257,190 | 1974 | 22,901,894 | 1973 | 22,566,978 | 1972 | 22,260,216 | 1971 | 21,986,708 | 1970 | 21,723,896 | 1969 | 21,459,352 | 1968 | 21,188,480 | 1967 | 20,891,576 | 1966 | 20,551,877 | 1965 | 20,167,700 | 1964 | 19,743,833 | 1963 | 19,291,705 | 1962 | 18,824,396 | 1961 | 18,346,934 | 1960 | 17,863,537 |
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