| Year | Value | | 2022 | 1,988,173 | | 2021 | 1,995,396 | | 2020 | 1,994,486 | | 2019 | 1,973,330 | | 2018 | 1,938,865 | | 2017 | 1,901,955 | | 2016 | 1,861,853 | | 2015 | 1,817,141 | | 2014 | 1,767,621 | | 2013 | 1,714,015 | | 2012 | 1,658,024 | | 2011 | 1,600,914 | | 2010 | 1,543,219 | | 2009 | 1,485,458 | | 2008 | 1,428,153 | | 2007 | 1,370,766 | | 2006 | 1,312,105 | | 2005 | 1,252,452 | | 2004 | 1,192,639 | | 2003 | 1,132,001 | | 2002 | 1,071,889 | | 2001 | 1,015,395 | | 2000 | 964,457 | | 1999 | 920,045 | | 1998 | 882,267 | | 1997 | 850,643 | | 1996 | 824,188 | | 1995 | 801,907 | | 1994 | 782,739 | | 1993 | 765,645 | | 1992 | 749,741 | | 1991 | 734,406 | | 1990 | 718,039 | | 1989 | 699,715 | | 1988 | 679,530 | | 1987 | 657,633 | | 1986 | 634,203 | | 1985 | 609,709 | | 1984 | 584,779 | | 1983 | 559,528 | | 1982 | 534,112 | | 1981 | 508,769 | | 1980 | 483,411 | | 1979 | 458,341 | | 1978 | 434,120 | | 1977 | 411,413 | | 1976 | 390,969 | | 1975 | 372,837 | | 1974 | 356,350 | | 1973 | 340,657 | | 1972 | 324,927 | | 1971 | 308,450 | | 1970 | 291,518 | | 1969 | 275,090 | | 1968 | 259,626 | | 1967 | 245,175 | | 1966 | 231,866 | | 1965 | 221,474 | | 1964 | 211,290 | | 1963 | 199,437 | | 1962 | 188,274 | | 1961 | 177,704 | | 1960 | 167,736 |
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