| Year | Value | | 2022 | 4,450,620 | | 2021 | 4,449,573 | | 2020 | 4,444,070 | | 2019 | 4,446,636 | | 2018 | 4,456,991 | | 2017 | 4,457,357 | | 2016 | 4,446,471 | | 2015 | 4,427,448 | | 2014 | 4,384,114 | | 2013 | 4,305,514 | | 2012 | 4,207,350 | | 2011 | 4,094,375 | | 2010 | 3,980,343 | | 2009 | 3,881,307 | | 2008 | 3,779,916 | | 2007 | 3,673,120 | | 2006 | 3,566,666 | | 2005 | 3,455,908 | | 2004 | 3,334,637 | | 2003 | 3,210,800 | | 2002 | 3,095,681 | | 2001 | 2,994,389 | | 2000 | 2,906,505 | | 1999 | 2,829,618 | | 1998 | 2,762,777 | | 1997 | 2,699,933 | | 1996 | 2,639,699 | | 1995 | 2,583,692 | | 1994 | 2,528,890 | | 1993 | 2,474,500 | | 1992 | 2,419,039 | | 1991 | 2,361,107 | | 1990 | 2,298,147 | | 1989 | 2,228,367 | | 1988 | 2,156,112 | | 1987 | 2,086,083 | | 1986 | 2,020,587 | | 1985 | 1,957,253 | | 1984 | 1,894,596 | | 1983 | 1,831,912 | | 1982 | 1,768,432 | | 1981 | 1,703,558 | | 1980 | 1,635,839 | | 1979 | 1,578,462 | | 1978 | 1,542,347 | | 1977 | 1,518,208 | | 1976 | 1,495,312 | | 1975 | 1,463,671 | | 1974 | 1,409,135 | | 1973 | 1,328,037 | | 1972 | 1,234,890 | | 1971 | 1,150,086 | | 1970 | 1,084,309 | | 1969 | 1,039,307 | | 1968 | 1,015,860 | | 1967 | 1,010,195 | | 1966 | 1,015,468 | | 1965 | 1,023,411 | | 1964 | 1,032,101 | | 1963 | 1,040,185 | | 1962 | 1,043,249 | | 1961 | 1,040,826 | | 1960 | 1,034,329 |
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