| Year | Value | | 2022 | 5,306,467 | | 2021 | 5,288,742 | | 2020 | 5,268,415 | | 2019 | 5,249,081 | | 2018 | 5,247,894 | | 2017 | 5,255,523 | | 2016 | 5,250,525 | | 2015 | 5,238,610 | | 2014 | 5,216,582 | | 2013 | 5,173,290 | | 2012 | 5,112,341 | | 2011 | 5,038,542 | | 2010 | 4,949,206 | | 2009 | 4,870,808 | | 2008 | 4,818,903 | | 2007 | 4,772,133 | | 2006 | 4,722,790 | | 2005 | 4,668,421 | | 2004 | 4,615,775 | | 2003 | 4,576,432 | | 2002 | 4,541,221 | | 2001 | 4,507,715 | | 2000 | 4,486,256 | | 1999 | 4,466,598 | | 1998 | 4,446,469 | | 1997 | 4,428,302 | | 1996 | 4,400,662 | | 1995 | 4,354,741 | | 1994 | 4,286,519 | | 1993 | 4,197,508 | | 1992 | 4,086,917 | | 1991 | 3,959,553 | | 1990 | 3,832,105 | | 1989 | 3,727,471 | | 1988 | 3,646,905 | | 1987 | 3,573,874 | | 1986 | 3,502,869 | | 1985 | 3,426,971 | | 1984 | 3,345,228 | | 1983 | 3,257,325 | | 1982 | 3,164,318 | | 1981 | 3,067,935 | | 1980 | 2,967,287 | | 1979 | 2,867,797 | | 1978 | 2,775,250 | | 1977 | 2,688,889 | | 1976 | 2,616,496 | | 1975 | 2,551,620 | | 1974 | 2,482,597 | | 1973 | 2,416,073 | | 1972 | 2,350,156 | | 1971 | 2,280,334 | | 1970 | 2,198,977 | | 1969 | 2,105,497 | | 1968 | 2,009,884 | | 1967 | 1,923,456 | | 1966 | 1,853,614 | | 1965 | 1,792,562 | | 1964 | 1,734,737 | | 1963 | 1,679,647 | | 1962 | 1,623,911 | | 1961 | 1,568,400 | | 1960 | 1,517,009 |
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