| Year | Value | | 2022 | 6,951,839 | | 2021 | 6,788,632 | | 2020 | 6,615,903 | | 2019 | 6,419,250 | | 2018 | 6,202,249 | | 2017 | 5,977,509 | | 2016 | 5,745,987 | | 2015 | 5,509,361 | | 2014 | 5,273,650 | | 2013 | 5,042,343 | | 2012 | 4,813,116 | | 2011 | 4,586,066 | | 2010 | 4,364,179 | | 2009 | 4,153,663 | | 2008 | 3,961,327 | | 2007 | 3,794,033 | | 2006 | 3,662,843 | | 2005 | 3,566,195 | | 2004 | 3,495,105 | | 2003 | 3,445,312 | | 2002 | 3,409,443 | | 2001 | 3,378,487 | | 2000 | 3,352,115 | | 1999 | 3,331,306 | | 1998 | 3,308,631 | | 1997 | 3,279,865 | | 1996 | 3,242,726 | | 1995 | 3,194,333 | | 1994 | 3,133,836 | | 1993 | 3,063,513 | | 1992 | 2,986,449 | | 1991 | 2,906,510 | | 1990 | 2,827,630 | | 1989 | 2,751,737 | | 1988 | 2,678,351 | | 1987 | 2,604,667 | | 1986 | 2,528,057 | | 1985 | 2,446,614 | | 1984 | 2,359,633 | | 1983 | 2,268,759 | | 1982 | 2,176,300 | | 1981 | 2,085,329 | | 1980 | 1,999,128 | | 1979 | 1,920,100 | | 1978 | 1,849,851 | | 1977 | 1,789,165 | | 1976 | 1,738,599 | | 1975 | 1,698,656 | | 1974 | 1,668,811 | | 1973 | 1,646,743 | | 1972 | 1,628,875 | | 1971 | 1,611,312 | | 1970 | 1,589,982 | | 1969 | 1,561,898 | | 1968 | 1,526,728 | | 1967 | 1,485,798 | | 1966 | 1,441,038 | | 1965 | 1,401,463 | | 1964 | 1,362,801 | | 1963 | 1,319,509 | | 1962 | 1,277,770 | | 1961 | 1,237,210 | | 1960 | 1,195,217 |
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