Year | Value | 2022 | 37,795,835 | 2021 | 38,095,135 | 2020 | 38,736,546 | 2019 | 39,101,407 | 2018 | 39,298,441 | 2017 | 39,341,449 | 2016 | 39,233,993 | 2015 | 39,083,575 | 2014 | 39,030,393 | 2013 | 39,068,331 | 2012 | 39,213,546 | 2011 | 39,470,466 | 2010 | 39,782,111 | 2009 | 39,933,989 | 2008 | 39,914,323 | 2007 | 39,723,741 | 2006 | 39,437,679 | 2005 | 39,131,819 | 2004 | 38,979,954 | 2003 | 39,008,610 | 2002 | 39,182,935 | 2001 | 39,560,889 | 2000 | 40,028,855 | 1999 | 40,386,126 | 1998 | 40,631,273 | 1997 | 40,803,150 | 1996 | 40,702,654 | 1995 | 40,521,621 | 1994 | 40,573,246 | 1993 | 40,692,521 | 1992 | 40,725,220 | 1991 | 40,816,600 | 1990 | 40,885,040 | 1989 | 40,741,121 | 1988 | 40,502,066 | 1987 | 40,254,346 | 1986 | 39,967,999 | 1985 | 39,634,634 | 1984 | 39,276,127 | 1983 | 38,847,550 | 1982 | 38,377,442 | 1981 | 38,091,504 | 1980 | 37,715,410 | 1979 | 37,209,512 | 1978 | 36,995,192 | 1977 | 37,017,134 | 1976 | 36,596,587 | 1975 | 35,507,764 | 1974 | 34,329,485 | 1973 | 33,154,852 | 1972 | 31,771,523 | 1971 | 30,581,009 | 1970 | 30,117,555 | 1969 | 29,978,364 | 1968 | 29,565,563 | 1967 | 29,168,728 | 1966 | 28,911,682 | 1965 | 28,631,045 | 1964 | 28,324,972 | 1963 | 28,065,490 | 1962 | 27,859,920 | 1961 | 27,709,926 | 1960 | 27,659,823 |
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