| Year | Value | | 2022 | 1,989,760 | | 2021 | 1,959,829 | | 2020 | 1,936,014 | | 2019 | 1,904,950 | | 2018 | 1,876,391 | | 2017 | 1,859,253 | | 2016 | 1,845,980 | | 2015 | 1,834,450 | | 2014 | 1,830,324 | | 2013 | 1,824,999 | | 2012 | 1,805,196 | | 2011 | 1,774,606 | | 2010 | 1,743,312 | | 2009 | 1,706,360 | | 2008 | 1,665,237 | | 2007 | 1,625,187 | | 2006 | 1,578,186 | | 2005 | 1,521,562 | | 2004 | 1,459,201 | | 2003 | 1,399,230 | | 2002 | 1,345,511 | | 2001 | 1,299,295 | | 2000 | 1,262,975 | | 1999 | 1,242,401 | | 1998 | 1,238,718 | | 1997 | 1,232,698 | | 1996 | 1,219,621 | | 1995 | 1,216,456 | | 1994 | 1,212,279 | | 1993 | 1,191,777 | | 1992 | 1,158,246 | | 1991 | 1,118,896 | | 1990 | 1,087,526 | | 1989 | 1,046,412 | | 1988 | 994,659 | | 1987 | 975,064 | | 1986 | 1,002,024 | | 1985 | 1,033,049 | | 1984 | 1,070,741 | | 1983 | 1,132,180 | | 1982 | 1,179,358 | | 1981 | 1,195,561 | | 1980 | 1,200,865 | | 1979 | 1,204,819 | | 1978 | 1,198,180 | | 1977 | 1,183,760 | | 1976 | 1,170,268 | | 1975 | 1,153,185 | | 1974 | 1,136,825 | | 1973 | 1,122,715 | | 1972 | 1,111,008 | | 1971 | 1,098,199 | | 1970 | 1,079,384 | | 1969 | 1,052,799 | | 1968 | 1,020,778 | | 1967 | 984,680 | | 1966 | 950,716 | | 1965 | 923,520 | | 1964 | 913,838 | | 1963 | 917,446 | | 1962 | 921,671 | | 1961 | 929,899 | | 1960 | 942,400 |
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