| Year | Value | | 2022 | 1,696,696 | | 2021 | 1,666,591 | | 2020 | 1,653,323 | | 2019 | 1,652,836 | | 2018 | 1,683,528 | | 2017 | 1,715,087 | | 2016 | 1,748,035 | | 2015 | 1,736,476 | | 2014 | 1,680,019 | | 2013 | 1,604,657 | | 2012 | 1,525,018 | | 2011 | 1,461,943 | | 2010 | 1,456,876 | | 2009 | 1,502,412 | | 2008 | 1,536,635 | | 2007 | 1,554,500 | | 2006 | 1,553,260 | | 2005 | 1,531,577 | | 2004 | 1,495,635 | | 2003 | 1,459,956 | | 2002 | 1,434,910 | | 2001 | 1,427,677 | | 2000 | 1,431,227 | | 1999 | 1,428,811 | | 1998 | 1,420,866 | | 1997 | 1,417,151 | | 1996 | 1,411,181 | | 1995 | 1,392,103 | | 1994 | 1,375,395 | | 1993 | 1,368,421 | | 1992 | 1,356,952 | | 1991 | 1,338,483 | | 1990 | 1,321,620 | | 1989 | 1,268,432 | | 1988 | 1,155,765 | | 1987 | 1,032,498 | | 1986 | 934,608 | | 1985 | 875,189 | | 1984 | 889,215 | | 1983 | 981,043 | | 1982 | 1,095,003 | | 1981 | 1,177,379 | | 1980 | 1,216,656 | | 1979 | 1,228,573 | | 1978 | 1,219,621 | | 1977 | 1,200,801 | | 1976 | 1,179,941 | | 1975 | 1,157,048 | | 1974 | 1,129,388 | | 1973 | 1,098,176 | | 1972 | 1,071,920 | | 1971 | 1,048,326 | | 1970 | 1,022,113 | | 1969 | 992,172 | | 1968 | 958,934 | | 1967 | 924,989 | | 1966 | 888,038 | | 1965 | 848,802 | | 1964 | 814,574 | | 1963 | 792,422 | | 1962 | 778,094 | | 1961 | 766,734 | | 1960 | 757,895 |
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