| Year | Value | | 2022 | 5,846,285 | | 2021 | 5,774,718 | | 2020 | 5,701,407 | | 2019 | 5,625,310 | | 2018 | 5,548,683 | | 2017 | 5,471,873 | | 2016 | 5,394,724 | | 2015 | 5,317,590 | | 2014 | 5,240,216 | | 2013 | 5,162,748 | | 2012 | 5,084,975 | | 2011 | 5,006,574 | | 2010 | 4,952,137 | | 2009 | 4,897,538 | | 2008 | 4,819,071 | | 2007 | 4,741,167 | | 2006 | 4,663,269 | | 2005 | 4,585,537 | | 2004 | 4,510,238 | | 2003 | 4,435,711 | | 2002 | 4,360,349 | | 2001 | 4,285,558 | | 2000 | 4,210,027 | | 1999 | 4,134,687 | | 1998 | 4,061,127 | | 1997 | 3,988,932 | | 1996 | 3,917,385 | | 1995 | 3,846,577 | | 1994 | 3,777,025 | | 1993 | 3,708,064 | | 1992 | 3,639,023 | | 1991 | 3,570,128 | | 1990 | 3,500,949 | | 1989 | 3,431,711 | | 1988 | 3,363,327 | | 1987 | 3,296,223 | | 1986 | 3,230,697 | | 1985 | 3,167,029 | | 1984 | 3,105,563 | | 1983 | 3,045,852 | | 1982 | 2,987,093 | | 1981 | 2,929,533 | | 1980 | 2,873,908 | | 1979 | 2,819,744 | | 1978 | 2,766,568 | | 1977 | 2,714,729 | | 1976 | 2,664,523 | | 1975 | 2,616,056 | | 1974 | 2,569,415 | | 1973 | 2,524,657 | | 1972 | 2,480,963 | | 1971 | 2,437,633 | | 1970 | 2,394,786 | | 1969 | 2,352,604 | | 1968 | 2,311,097 | | 1967 | 2,270,188 | | 1966 | 2,229,977 | | 1965 | 2,190,272 | | 1964 | 2,150,802 | | 1963 | 2,113,452 | | 1962 | 2,076,670 | | 1961 | 2,038,685 | | 1960 | 2,001,044 |
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