| Year | Value | | 2022 | 11,212,191 | | 2021 | 11,256,372 | | 2020 | 11,300,698 | | 2019 | 11,316,697 | | 2018 | 11,328,244 | | 2017 | 11,336,405 | | 2016 | 11,342,012 | | 2015 | 11,339,894 | | 2014 | 11,332,026 | | 2013 | 11,321,579 | | 2012 | 11,309,290 | | 2011 | 11,298,710 | | 2010 | 11,290,417 | | 2009 | 11,283,185 | | 2008 | 11,276,609 | | 2007 | 11,269,887 | | 2006 | 11,260,630 | | 2005 | 11,246,114 | | 2004 | 11,225,294 | | 2003 | 11,199,217 | | 2002 | 11,170,051 | | 2001 | 11,139,127 | | 2000 | 11,105,791 | | 1999 | 11,070,094 | | 1998 | 11,033,758 | | 1997 | 10,998,129 | | 1996 | 10,963,031 | | 1995 | 10,926,703 | | 1994 | 10,887,207 | | 1993 | 10,840,934 | | 1992 | 10,783,748 | | 1991 | 10,713,812 | | 1990 | 10,626,680 | | 1989 | 10,527,187 | | 1988 | 10,425,433 | | 1987 | 10,326,910 | | 1986 | 10,235,480 | | 1985 | 10,149,044 | | 1984 | 10,065,539 | | 1983 | 9,984,591 | | 1982 | 9,908,874 | | 1981 | 9,848,560 | | 1980 | 9,809,107 | | 1979 | 9,774,711 | | 1978 | 9,729,986 | | 1977 | 9,672,546 | | 1976 | 9,600,862 | | 1975 | 9,514,305 | | 1974 | 9,413,105 | | 1973 | 9,297,924 | | 1972 | 9,169,289 | | 1971 | 9,025,709 | | 1970 | 8,869,636 | | 1969 | 8,709,654 | | 1968 | 8,550,286 | | 1967 | 8,390,962 | | 1966 | 8,230,450 | | 1965 | 8,067,651 | | 1964 | 7,902,286 | | 1963 | 7,736,352 | | 1962 | 7,574,265 | | 1961 | 7,418,518 | | 1960 | 7,267,395 |
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