| Year | Value | | 2022 | 1,427,625 | | 2021 | 1,427,367 | | 2020 | 1,427,851 | | 2019 | 1,437,255 | | 2018 | 1,455,642 | | 2017 | 1,473,804 | | 2016 | 1,491,555 | | 2015 | 1,509,862 | | 2014 | 1,524,289 | | 2013 | 1,531,578 | | 2012 | 1,536,326 | | 2011 | 1,541,983 | | 2010 | 1,547,673 | | 2009 | 1,553,372 | | 2008 | 1,557,671 | | 2007 | 1,556,011 | | 2006 | 1,546,928 | | 2005 | 1,530,887 | | 2004 | 1,507,650 | | 2003 | 1,483,215 | | 2002 | 1,460,626 | | 2001 | 1,437,666 | | 2000 | 1,416,010 | | 1999 | 1,395,471 | | 1998 | 1,375,161 | | 1997 | 1,354,346 | | 1996 | 1,332,007 | | 1995 | 1,307,402 | | 1994 | 1,279,536 | | 1993 | 1,250,046 | | 1992 | 1,221,727 | | 1991 | 1,195,739 | | 1990 | 1,171,203 | | 1989 | 1,148,082 | | 1988 | 1,126,683 | | 1987 | 1,106,756 | | 1986 | 1,087,312 | | 1985 | 1,065,601 | | 1984 | 1,041,674 | | 1983 | 1,015,866 | | 1982 | 985,597 | | 1981 | 952,329 | | 1980 | 919,061 | | 1979 | 885,948 | | 1978 | 853,799 | | 1977 | 822,809 | | 1976 | 793,108 | | 1975 | 765,304 | | 1974 | 738,330 | | 1973 | 704,761 | | 1972 | 665,024 | | 1971 | 625,752 | | 1970 | 588,628 | | 1969 | 555,959 | | 1968 | 534,539 | | 1967 | 523,867 | | 1966 | 515,543 | | 1965 | 507,802 | | 1964 | 500,774 | | 1963 | 494,606 | | 1962 | 490,794 | | 1961 | 488,262 | | 1960 | 487,854 |
|