| Year | Value | | 2022 | 3,135,133 | | 2021 | 3,335,414 | | 2020 | 3,363,373 | | 2019 | 3,383,675 | | 2018 | 3,406,489 | | 2017 | 3,430,331 | | 2016 | 3,455,141 | | 2015 | 3,478,837 | | 2014 | 3,500,151 | | 2013 | 3,519,159 | | 2012 | 3,537,445 | | 2011 | 3,555,965 | | 2010 | 3,576,521 | | 2009 | 3,597,386 | | 2008 | 3,617,711 | | 2007 | 3,640,438 | | 2006 | 3,665,020 | | 2005 | 3,691,351 | | 2004 | 3,718,227 | | 2003 | 3,745,714 | | 2002 | 3,774,971 | | 2001 | 3,857,899 | | 2000 | 3,936,609 | | 1999 | 3,958,158 | | 1998 | 3,984,016 | | 1997 | 4,015,265 | | 1996 | 4,044,623 | | 1995 | 4,071,321 | | 1994 | 4,096,028 | | 1993 | 4,116,568 | | 1992 | 4,155,659 | | 1991 | 4,205,732 | | 1990 | 4,252,523 | | 1989 | 4,335,085 | | 1988 | 4,391,111 | | 1987 | 4,391,125 | | 1986 | 4,389,586 | | 1985 | 4,395,609 | | 1984 | 4,400,314 | | 1983 | 4,394,409 | | 1982 | 4,387,238 | | 1981 | 4,377,342 | | 1980 | 4,365,707 | | 1979 | 4,350,854 | | 1978 | 4,347,145 | | 1977 | 4,344,169 | | 1976 | 4,323,270 | | 1975 | 4,305,897 | | 1974 | 4,286,205 | | 1973 | 4,258,500 | | 1972 | 4,237,148 | | 1971 | 4,218,224 | | 1970 | 4,195,535 | | 1969 | 4,168,347 | | 1968 | 4,136,512 | | 1967 | 4,106,886 | | 1966 | 4,080,320 | | 1965 | 4,052,309 | | 1964 | 4,020,764 | | 1963 | 3,985,190 | | 1962 | 3,949,507 | | 1961 | 3,911,289 | | 1960 | 3,870,000 |
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