| Year | Value | | 2022 | 5,455,092 | | 2021 | 5,065,033 | | 2020 | 4,798,810 | | 2019 | 4,656,511 | | 2018 | 4,472,131 | | 2017 | 4,267,425 | | 2016 | 4,158,693 | | 2015 | 4,063,221 | | 2014 | 3,928,085 | | 2013 | 3,854,714 | | 2012 | 3,827,577 | | 2011 | 3,798,520 | | 2010 | 3,812,669 | | 2009 | 3,912,640 | | 2008 | 3,958,370 | | 2007 | 3,942,197 | | 2006 | 3,917,725 | | 2005 | 3,805,571 | | 2004 | 3,612,508 | | 2003 | 3,502,040 | | 2002 | 3,458,205 | | 2001 | 3,354,408 | | 2000 | 3,312,563 | | 1999 | 3,340,899 | | 1998 | 3,251,296 | | 1997 | 3,098,383 | | 1996 | 3,017,880 | | 1995 | 2,926,063 | | 1994 | 2,807,173 | | 1993 | 2,734,411 | | 1992 | 2,719,355 | | 1991 | 2,686,844 | | 1990 | 2,637,318 | | 1989 | 2,587,094 | | 1988 | 2,534,733 | | 1987 | 2,476,590 | | 1986 | 2,391,471 | | 1985 | 2,314,270 | | 1984 | 2,258,925 | | 1983 | 2,185,583 | | 1982 | 2,123,361 | | 1981 | 2,077,350 | | 1980 | 2,017,344 | | 1979 | 1,962,156 | | 1978 | 1,930,774 | | 1977 | 1,885,295 | | 1976 | 1,838,717 | | 1975 | 1,820,700 | | 1974 | 1,801,017 | | 1973 | 1,770,481 | | 1972 | 1,735,301 | | 1971 | 1,710,356 | | 1970 | 1,687,089 | | 1969 | 1,673,805 | | 1968 | 1,678,148 | | 1967 | 1,686,613 | | 1966 | 1,673,580 | | 1965 | 1,648,199 | | 1964 | 1,625,916 | | 1963 | 1,602,044 | | 1962 | 1,577,221 | | 1961 | 1,547,233 | | 1960 | 1,508,284 |
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