Year | Value | 2022 | 22,711,682 | 2021 | 23,003,814 | 2020 | 23,288,429 | 2019 | 23,545,239 | 2018 | 23,720,322 | 2017 | 23,849,296 | 2016 | 23,992,213 | 2015 | 24,116,322 | 2014 | 24,202,811 | 2013 | 24,286,908 | 2012 | 24,363,752 | 2011 | 24,430,665 | 2010 | 24,517,104 | 2009 | 24,649,661 | 2008 | 24,778,164 | 2007 | 24,925,587 | 2006 | 25,097,383 | 2005 | 25,281,614 | 2004 | 25,464,591 | 2003 | 25,645,862 | 2002 | 25,797,690 | 2001 | 25,896,617 | 2000 | 25,968,295 | 1999 | 26,037,505 | 1998 | 26,096,665 | 1997 | 26,131,082 | 1996 | 26,154,942 | 1995 | 26,165,163 | 1994 | 26,152,084 | 1993 | 26,125,140 | 1992 | 26,090,284 | 1991 | 26,030,887 | 1990 | 25,938,182 | 1989 | 25,841,070 | 1988 | 25,745,042 | 1987 | 25,638,842 | 1986 | 25,520,261 | 1985 | 25,367,561 | 1984 | 25,167,004 | 1983 | 24,927,605 | 1982 | 24,661,776 | 1981 | 24,382,135 | 1980 | 24,082,787 | 1979 | 23,752,823 | 1978 | 23,403,252 | 1977 | 23,047,581 | 1976 | 22,700,637 | 1975 | 22,361,647 | 1974 | 22,034,446 | 1973 | 21,725,403 | 1972 | 21,438,774 | 1971 | 21,179,302 | 1970 | 20,924,568 | 1969 | 20,665,051 | 1968 | 20,399,001 | 1967 | 20,103,831 | 1966 | 19,760,062 | 1965 | 19,367,933 | 1964 | 18,933,698 | 1963 | 18,469,848 | 1962 | 17,995,652 | 1961 | 17,522,198 | 1960 | 17,052,852 |
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