| Year | Value | | 2022 | 3,384,592 | | 2021 | 3,419,023 | | 2020 | 3,452,974 | | 2019 | 3,467,315 | | 2018 | 3,443,005 | | 2017 | 3,416,625 | | 2016 | 3,391,006 | | 2015 | 3,375,671 | | 2014 | 3,357,909 | | 2013 | 3,345,028 | | 2012 | 3,341,565 | | 2011 | 3,315,497 | | 2010 | 3,306,449 | | 2009 | 3,296,437 | | 2008 | 3,303,141 | | 2007 | 3,297,018 | | 2006 | 3,283,026 | | 2005 | 3,277,700 | | 2004 | 3,279,895 | | 2003 | 3,270,809 | | 2002 | 3,293,565 | | 2001 | 3,294,798 | | 2000 | 3,284,799 | | 1999 | 3,268,980 | | 1998 | 3,250,956 | | 1997 | 3,237,138 | | 1996 | 3,223,101 | | 1995 | 3,092,633 | | 1994 | 3,039,360 | | 1993 | 2,979,206 | | 1992 | 2,936,179 | | 1991 | 2,919,677 | | 1990 | 2,903,555 | | 1989 | 2,902,449 | | 1988 | 2,881,110 | | 1987 | 2,865,813 | | 1986 | 2,845,874 | | 1985 | 2,818,822 | | 1984 | 2,796,496 | | 1983 | 2,777,630 | | 1982 | 2,745,021 | | 1981 | 2,710,734 | | 1980 | 2,647,535 | | 1979 | 2,570,903 | | 1978 | 2,427,734 | | 1977 | 2,377,745 | | 1976 | 2,337,084 | | 1975 | 2,301,195 | | 1974 | 2,251,412 | | 1973 | 2,175,071 | | 1972 | 2,108,344 | | 1971 | 2,062,839 | | 1970 | 2,017,523 | | 1969 | 1,971,071 | | 1968 | 1,941,774 | | 1967 | 1,902,905 | | 1966 | 1,857,469 | | 1965 | 1,843,341 | | 1964 | 1,797,965 | | 1963 | 1,757,515 | | 1962 | 1,700,482 | | 1961 | 1,632,023 | | 1960 | 1,605,390 |
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