| Year | Value | | 2022 | 7,412,540 | | 2021 | 7,433,696 | | 2020 | 7,455,467 | | 2019 | 7,445,754 | | 2018 | 7,418,413 | | 2017 | 7,390,686 | | 2016 | 7,354,014 | | 2015 | 7,302,153 | | 2014 | 7,246,350 | | 2013 | 7,195,632 | | 2012 | 7,150,971 | | 2011 | 7,114,020 | | 2010 | 7,081,770 | | 2009 | 7,049,739 | | 2008 | 7,024,602 | | 2007 | 7,005,597 | | 2006 | 6,993,921 | | 2005 | 6,992,229 | | 2004 | 6,994,710 | | 2003 | 6,996,348 | | 2002 | 6,998,521 | | 2001 | 6,995,457 | | 2000 | 6,983,033 | | 1999 | 6,966,778 | | 1998 | 6,956,101 | | 1997 | 6,949,361 | | 1996 | 6,939,798 | | 1995 | 6,924,262 | | 1994 | 6,907,388 | | 1993 | 6,876,034 | | 1992 | 6,821,128 | | 1991 | 6,766,199 | | 1990 | 6,723,034 | | 1989 | 6,669,994 | | 1988 | 6,578,021 | | 1987 | 6,457,896 | | 1986 | 6,312,729 | | 1985 | 6,167,842 | | 1984 | 6,025,280 | | 1983 | 5,879,814 | | 1982 | 5,734,993 | | 1981 | 5,591,406 | | 1980 | 5,448,102 | | 1979 | 5,309,728 | | 1978 | 5,167,027 | | 1977 | 5,019,081 | | 1976 | 4,877,627 | | 1975 | 4,741,013 | | 1974 | 4,602,886 | | 1973 | 4,447,749 | | 1972 | 4,290,972 | | 1971 | 4,133,823 | | 1970 | 3,978,504 | | 1969 | 3,831,426 | | 1968 | 3,690,749 | | 1967 | 3,551,335 | | 1966 | 3,415,027 | | 1965 | 3,282,735 | | 1964 | 3,153,963 | | 1963 | 3,022,385 | | 1962 | 2,895,029 | | 1961 | 2,772,677 | | 1960 | 2,656,234 |
|