| Year | Value | | 2022 | 5,559,991 | | 2021 | 5,569,435 | | 2020 | 5,656,225 | | 2019 | 5,709,090 | | 2018 | 5,657,530 | | 2017 | 5,600,150 | | 2016 | 5,546,767 | | 2015 | 5,508,524 | | 2014 | 5,474,196 | | 2013 | 5,433,879 | | 2012 | 5,387,606 | | 2011 | 5,336,114 | | 2010 | 5,269,441 | | 2009 | 5,164,967 | | 2008 | 5,035,029 | | 2007 | 4,903,285 | | 2006 | 4,770,964 | | 2005 | 4,640,676 | | 2004 | 4,553,952 | | 2003 | 4,507,470 | | 2002 | 4,455,908 | | 2001 | 4,400,180 | | 2000 | 4,342,230 | | 1999 | 4,282,609 | | 1998 | 4,220,832 | | 1997 | 4,157,750 | | 1996 | 4,093,628 | | 1995 | 4,028,993 | | 1994 | 3,962,059 | | 1993 | 3,893,027 | | 1992 | 3,827,646 | | 1991 | 3,793,344 | | 1990 | 3,747,835 | | 1989 | 3,695,522 | | 1988 | 3,639,143 | | 1987 | 3,580,359 | | 1986 | 3,519,154 | | 1985 | 3,525,869 | | 1984 | 3,525,687 | | 1983 | 3,519,930 | | 1982 | 3,508,986 | | 1981 | 3,493,804 | | 1980 | 3,472,622 | | 1979 | 3,446,309 | | 1978 | 3,414,817 | | 1977 | 3,377,676 | | 1976 | 3,336,392 | | 1975 | 3,289,406 | | 1974 | 3,240,059 | | 1973 | 3,210,357 | | 1972 | 3,180,104 | | 1971 | 3,154,320 | | 1970 | 3,134,369 | | 1969 | 3,117,931 | | 1968 | 3,101,912 | | 1967 | 3,085,211 | | 1966 | 3,067,626 | | 1965 | 3,048,644 | | 1964 | 3,027,070 | | 1963 | 3,003,567 | | 1962 | 2,964,111 | | 1961 | 2,912,051 | | 1960 | 2,863,825 |
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