Year | Value | 2022 | 41,347,556 | 2021 | 41,049,155 | 2020 | 41,032,520 | 2019 | 40,996,355 | 2018 | 40,899,311 | 2017 | 40,766,909 | 2016 | 40,598,245 | 2015 | 40,244,901 | 2014 | 39,859,493 | 2013 | 39,647,229 | 2012 | 39,486,445 | 2011 | 39,357,575 | 2010 | 40,037,382 | 2009 | 40,042,085 | 2008 | 40,088,841 | 2007 | 40,116,978 | 2006 | 40,131,513 | 2005 | 40,147,180 | 2004 | 40,151,562 | 2003 | 40,149,300 | 2002 | 40,120,267 | 2001 | 40,049,852 | 2000 | 39,980,931 | 1999 | 39,922,472 | 1998 | 39,887,145 | 1997 | 39,864,677 | 1996 | 39,779,721 | 1995 | 39,626,806 | 1994 | 39,461,000 | 1993 | 39,264,679 | 1992 | 38,940,940 | 1991 | 38,574,105 | 1990 | 38,217,081 | 1989 | 37,810,826 | 1988 | 37,444,596 | 1987 | 37,228,839 | 1986 | 37,108,593 | 1985 | 37,038,292 | 1984 | 37,078,420 | 1983 | 37,170,588 | 1982 | 37,236,122 | 1981 | 37,243,612 | 1980 | 37,163,759 | 1979 | 37,067,953 | 1978 | 37,036,039 | 1977 | 37,054,626 | 1976 | 37,125,134 | 1975 | 37,271,412 | 1974 | 37,397,163 | 1973 | 37,369,239 | 1972 | 37,236,855 | 1971 | 37,038,483 | 1970 | 36,946,325 | 1969 | 36,798,468 | 1968 | 36,479,077 | 1967 | 36,284,066 | 1966 | 36,082,008 | 1965 | 35,742,529 | 1964 | 35,396,796 | 1963 | 35,068,225 | 1962 | 34,697,958 | 1961 | 34,343,338 | 1960 | 34,026,240 |
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