| Year | Value | | 2022 | 8,678,348 | | 2021 | 8,700,275 | | 2020 | 8,723,461 | | 2019 | 8,726,192 | | 2018 | 8,726,939 | | 2017 | 8,726,424 | | 2016 | 8,725,410 | | 2015 | 8,719,925 | | 2014 | 8,709,909 | | 2013 | 8,698,029 | | 2012 | 8,683,386 | | 2011 | 8,664,868 | | 2010 | 8,648,121 | | 2009 | 8,632,201 | | 2008 | 8,616,795 | | 2007 | 8,601,178 | | 2006 | 8,583,640 | | 2005 | 8,562,116 | | 2004 | 8,535,826 | | 2003 | 8,505,469 | | 2002 | 8,465,223 | | 2001 | 8,416,167 | | 2000 | 8,365,215 | | 1999 | 8,312,423 | | 1998 | 8,259,320 | | 1997 | 8,206,584 | | 1996 | 8,159,345 | | 1995 | 8,116,027 | | 1994 | 8,070,360 | | 1993 | 8,019,798 | | 1992 | 7,961,318 | | 1991 | 7,893,508 | | 1990 | 7,796,158 | | 1989 | 7,673,056 | | 1988 | 7,548,848 | | 1987 | 7,427,217 | | 1986 | 7,311,203 | | 1985 | 7,199,021 | | 1984 | 7,089,461 | | 1983 | 6,981,725 | | 1982 | 6,878,146 | | 1981 | 6,781,029 | | 1980 | 6,680,590 | | 1979 | 6,582,877 | | 1978 | 6,478,127 | | 1977 | 6,364,729 | | 1976 | 6,242,288 | | 1975 | 6,110,467 | | 1974 | 5,970,074 | | 1973 | 5,821,802 | | 1972 | 5,666,621 | | 1971 | 5,503,516 | | 1970 | 5,345,375 | | 1969 | 5,232,847 | | 1968 | 5,121,194 | | 1967 | 5,010,160 | | 1966 | 4,899,011 | | 1965 | 4,787,102 | | 1964 | 4,674,202 | | 1963 | 4,561,585 | | 1962 | 4,451,850 | | 1961 | 4,346,361 | | 1960 | 4,244,231 |
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