| Year | Value | | 2022 | 4,910,305 | | 2021 | 4,811,553 | | 2020 | 4,710,175 | | 2019 | 4,605,722 | | 2018 | 4,498,858 | | 2017 | 4,391,815 | | 2016 | 4,284,284 | | 2015 | 4,176,197 | | 2014 | 4,068,046 | | 2013 | 3,960,092 | | 2012 | 3,852,159 | | 2011 | 3,744,221 | | 2010 | 3,635,383 | | 2009 | 3,526,604 | | 2008 | 3,419,577 | | 2007 | 3,314,819 | | 2006 | 3,212,224 | | 2005 | 3,111,127 | | 2004 | 3,011,670 | | 2003 | 2,913,907 | | 2002 | 2,818,074 | | 2001 | 2,724,370 | | 2000 | 2,631,423 | | 1999 | 2,538,843 | | 1998 | 2,448,347 | | 1997 | 2,359,852 | | 1996 | 2,273,162 | | 1995 | 2,188,925 | | 1994 | 2,106,988 | | 1993 | 2,027,313 | | 1992 | 1,950,133 | | 1991 | 1,877,437 | | 1990 | 1,814,003 | | 1989 | 1,764,213 | | 1988 | 1,724,564 | | 1987 | 1,687,890 | | 1986 | 1,652,114 | | 1985 | 1,617,418 | | 1984 | 1,583,902 | | 1983 | 1,551,602 | | 1982 | 1,520,546 | | 1981 | 1,490,658 | | 1980 | 1,461,036 | | 1979 | 1,431,385 | | 1978 | 1,402,012 | | 1977 | 1,372,763 | | 1976 | 1,343,654 | | 1975 | 1,314,693 | | 1974 | 1,285,790 | | 1973 | 1,256,805 | | 1972 | 1,227,552 | | 1971 | 1,198,555 | | 1970 | 1,170,454 | | 1969 | 1,143,421 | | 1968 | 1,117,646 | | 1967 | 1,093,287 | | 1966 | 1,069,584 | | 1965 | 1,046,716 | | 1964 | 1,025,107 | | 1963 | 1,003,601 | | 1962 | 981,514 | | 1961 | 958,976 | | 1960 | 934,271 |
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