| Year | Value | | 2022 | 4,362,033 | | 2021 | 4,257,353 | | 2020 | 4,154,812 | | 2019 | 4,093,812 | | 2018 | 4,024,399 | | 2017 | 3,958,480 | | 2016 | 3,894,285 | | 2015 | 3,825,700 | | 2014 | 3,756,020 | | 2013 | 3,688,170 | | 2012 | 3,620,962 | | 2011 | 3,565,079 | | 2010 | 3,524,464 | | 2009 | 3,483,856 | | 2008 | 3,441,997 | | 2007 | 3,409,340 | | 2006 | 3,376,879 | | 2005 | 3,340,718 | | 2004 | 3,303,149 | | 2003 | 3,263,368 | | 2002 | 3,229,232 | | 2001 | 3,199,678 | | 2000 | 3,169,363 | | 1999 | 3,131,739 | | 1998 | 3,075,814 | | 1997 | 3,015,793 | | 1996 | 2,959,121 | | 1995 | 2,902,740 | | 1994 | 2,861,083 | | 1993 | 2,849,225 | | 1992 | 2,835,536 | | 1991 | 2,790,196 | | 1990 | 2,732,336 | | 1989 | 2,667,850 | | 1988 | 2,605,832 | | 1987 | 2,558,171 | | 1986 | 2,507,933 | | 1985 | 2,458,943 | | 1984 | 2,411,445 | | 1983 | 2,361,437 | | 1982 | 2,310,954 | | 1981 | 2,263,929 | | 1980 | 2,220,107 | | 1979 | 2,178,193 | | 1978 | 2,140,347 | | 1977 | 2,106,520 | | 1976 | 2,071,277 | | 1975 | 2,035,164 | | 1974 | 1,997,464 | | 1973 | 1,958,604 | | 1972 | 1,922,312 | | 1971 | 1,885,643 | | 1970 | 1,850,944 | | 1969 | 1,817,529 | | 1968 | 1,779,165 | | 1967 | 1,736,857 | | 1966 | 1,694,347 | | 1965 | 1,650,746 | | 1964 | 1,609,094 | | 1963 | 1,564,609 | | 1962 | 1,520,350 | | 1961 | 1,477,366 | | 1960 | 1,429,786 |
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