| Year | Value | | 2022 | 5,942,276 | | 2021 | 5,788,559 | | 2020 | 5,640,984 | | 2019 | 5,502,056 | | 2018 | 5,376,523 | | 2017 | 5,263,200 | | 2016 | 5,144,222 | | 2015 | 5,009,682 | | 2014 | 4,861,366 | | 2013 | 4,695,517 | | 2012 | 4,510,292 | | 2011 | 4,316,599 | | 2010 | 4,127,147 | | 2009 | 3,951,548 | | 2008 | 3,804,174 | | 2007 | 3,681,623 | | 2006 | 3,586,194 | | 2005 | 3,516,466 | | 2004 | 3,452,580 | | 2003 | 3,386,185 | | 2002 | 3,314,967 | | 2001 | 3,237,079 | | 2000 | 3,163,767 | | 1999 | 3,094,431 | | 1998 | 3,015,065 | | 1997 | 2,922,773 | | 1996 | 2,819,965 | | 1995 | 2,706,387 | | 1994 | 2,572,119 | | 1993 | 2,432,582 | | 1992 | 2,317,636 | | 1991 | 2,223,814 | | 1990 | 2,142,652 | | 1989 | 2,084,667 | | 1988 | 2,043,228 | | 1987 | 1,994,762 | | 1986 | 1,938,581 | | 1985 | 1,883,161 | | 1984 | 1,830,786 | | 1983 | 1,783,174 | | 1982 | 1,740,110 | | 1981 | 1,700,891 | | 1980 | 1,665,338 | | 1979 | 1,633,477 | | 1978 | 1,603,588 | | 1977 | 1,574,293 | | 1976 | 1,549,370 | | 1975 | 1,528,421 | | 1974 | 1,507,306 | | 1973 | 1,485,318 | | 1972 | 1,462,837 | | 1971 | 1,447,640 | | 1970 | 1,433,919 | | 1969 | 1,410,104 | | 1968 | 1,380,199 | | 1967 | 1,347,991 | | 1966 | 1,315,187 | | 1965 | 1,282,219 | | 1964 | 1,248,768 | | 1963 | 1,215,127 | | 1962 | 1,181,536 | | 1961 | 1,148,879 | | 1960 | 1,118,204 |
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