| Year | Value | | 2022 | 3,338,357 | | 2021 | 3,310,646 | | 2020 | 3,281,093 | | 2019 | 3,251,978 | | 2018 | 3,209,651 | | 2017 | 3,163,227 | | 2016 | 3,116,182 | | 2015 | 3,061,538 | | 2014 | 2,996,306 | | 2013 | 2,932,793 | | 2012 | 2,879,939 | | 2011 | 2,824,567 | | 2010 | 2,762,414 | | 2009 | 2,702,650 | | 2008 | 2,699,596 | | 2007 | 2,698,311 | | 2006 | 2,668,802 | | 2005 | 2,646,548 | | 2004 | 2,632,225 | | 2003 | 2,560,958 | | 2002 | 2,472,767 | | 2001 | 2,417,107 | | 2000 | 2,340,509 | | 1999 | 2,243,184 | | 1998 | 2,130,239 | | 1997 | 2,033,605 | | 1996 | 1,952,269 | | 1995 | 1,869,752 | | 1994 | 1,800,468 | | 1993 | 1,787,330 | | 1992 | 1,745,227 | | 1991 | 1,652,020 | | 1990 | 1,596,304 | | 1989 | 1,556,157 | | 1988 | 1,476,016 | | 1987 | 1,421,862 | | 1986 | 1,410,028 | | 1985 | 1,359,064 | | 1984 | 1,292,293 | | 1983 | 1,228,659 | | 1982 | 1,179,456 | | 1981 | 1,146,464 | | 1980 | 1,125,942 | | 1979 | 1,112,737 | | 1978 | 1,102,288 | | 1977 | 1,089,225 | | 1976 | 1,075,173 | | 1975 | 1,054,290 | | 1974 | 1,024,400 | | 1973 | 993,002 | | 1972 | 962,121 | | 1971 | 932,486 | | 1970 | 911,403 | | 1969 | 899,577 | | 1968 | 898,048 | | 1967 | 894,696 | | 1966 | 880,720 | | 1965 | 863,720 | | 1964 | 843,430 | | 1963 | 821,950 | | 1962 | 798,373 | | 1961 | 775,055 | | 1960 | 751,760 |
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