Year | Value | 2022 | 54,808,228 | 2021 | 55,340,255 | 2020 | 55,952,175 | 2019 | 56,478,245 | 2018 | 56,980,556 | 2017 | 57,577,815 | 2016 | 58,153,664 | 2015 | 58,723,397 | 2014 | 59,387,137 | 2013 | 59,904,032 | 2012 | 60,202,030 | 2011 | 60,446,589 | 2010 | 60,708,486 | 2009 | 61,055,314 | 2008 | 61,499,254 | 2007 | 62,028,978 | 2006 | 62,583,875 | 2005 | 62,982,550 | 2004 | 63,077,533 | 2003 | 62,960,740 | 2002 | 62,711,763 | 2001 | 62,341,686 | 2000 | 61,990,417 | 1999 | 61,747,524 | 1998 | 61,533,405 | 1997 | 61,321,067 | 1996 | 61,113,578 | 1995 | 60,846,969 | 1994 | 60,553,536 | 1993 | 60,274,335 | 1992 | 59,932,989 | 1991 | 59,561,839 | 1990 | 59,147,728 | 1989 | 58,598,664 | 1988 | 57,917,157 | 1987 | 57,132,646 | 1986 | 56,230,082 | 1985 | 55,260,554 | 1984 | 54,244,405 | 1983 | 53,161,109 | 1982 | 52,108,916 | 1981 | 51,142,256 | 1980 | 50,245,543 | 1979 | 49,460,550 | 1978 | 48,806,424 | 1977 | 48,159,901 | 1976 | 47,426,653 | 1975 | 46,631,981 | 1974 | 45,787,458 | 1973 | 44,923,825 | 1972 | 44,097,668 | 1971 | 43,276,333 | 1970 | 42,474,467 | 1969 | 41,729,343 | 1968 | 41,005,614 | 1967 | 40,339,009 | 1966 | 39,733,330 | 1965 | 39,105,722 | 1964 | 38,367,892 | 1963 | 37,561,889 | 1962 | 36,801,314 | 1961 | 36,073,794 | 1960 | 35,366,605 |
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