| Year | Value | | 2022 | 1,375,876 | | 2021 | 1,517,475 | | 2020 | 1,506,466 | | 2019 | 1,489,320 | | 2018 | 1,470,648 | | 2017 | 1,450,648 | | 2016 | 1,428,228 | | 2015 | 1,409,763 | | 2014 | 1,408,538 | | 2013 | 1,438,713 | | 2012 | 1,482,268 | | 2011 | 1,534,942 | | 2010 | 1,598,723 | | 2009 | 1,658,342 | | 2008 | 1,697,253 | | 2007 | 1,718,110 | | 2006 | 1,720,761 | | 2005 | 1,699,810 | | 2004 | 1,676,579 | | 2003 | 1,654,448 | | 2002 | 1,634,119 | | 2001 | 1,631,481 | | 2000 | 1,641,642 | | 1999 | 1,661,924 | | 1998 | 1,668,637 | | 1997 | 1,637,204 | | 1996 | 1,577,756 | | 1995 | 1,468,619 | | 1994 | 1,319,285 | | 1993 | 1,191,401 | | 1992 | 1,121,272 | | 1991 | 1,138,614 | | 1990 | 1,256,611 | | 1989 | 1,427,554 | | 1988 | 1,621,525 | | 1987 | 1,827,780 | | 1986 | 1,941,730 | | 1985 | 1,949,653 | | 1984 | 1,877,452 | | 1983 | 1,719,965 | | 1982 | 1,541,612 | | 1981 | 1,420,235 | | 1980 | 1,398,424 | | 1979 | 1,460,680 | | 1978 | 1,582,967 | | 1977 | 1,700,892 | | 1976 | 1,754,200 | | 1975 | 1,731,865 | | 1974 | 1,649,698 | | 1973 | 1,541,723 | | 1972 | 1,407,320 | | 1971 | 1,271,985 | | 1970 | 1,145,881 | | 1969 | 1,030,314 | | 1968 | 943,973 | | 1967 | 865,320 | | 1966 | 791,639 | | 1965 | 757,088 | | 1964 | 774,422 | | 1963 | 811,310 | | 1962 | 879,150 | | 1961 | 965,288 | | 1960 | 1,031,223 |
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