| Year | Value | | 2022 | 1,217,107 | | 2021 | 1,210,414 | | 2020 | 1,225,134 | | 2019 | 1,250,540 | | 2018 | 1,287,549 | | 2017 | 1,328,207 | | 2016 | 1,364,478 | | 2015 | 1,386,163 | | 2014 | 1,393,398 | | 2013 | 1,383,274 | | 2012 | 1,367,804 | | 2011 | 1,347,567 | | 2010 | 1,322,650 | | 2009 | 1,293,391 | | 2008 | 1,260,904 | | 2007 | 1,223,380 | | 2006 | 1,184,912 | | 2005 | 1,147,615 | | 2004 | 1,113,355 | | 2003 | 1,085,135 | | 2002 | 1,067,089 | | 2001 | 1,048,298 | | 2000 | 1,017,247 | | 1999 | 976,828 | | 1998 | 933,208 | | 1997 | 883,493 | | 1996 | 832,077 | | 1995 | 791,895 | | 1994 | 760,799 | | 1993 | 730,330 | | 1992 | 701,397 | | 1991 | 676,353 | | 1990 | 656,630 | | 1989 | 640,787 | | 1988 | 628,258 | | 1987 | 624,545 | | 1986 | 624,830 | | 1985 | 628,406 | | 1984 | 632,679 | | 1983 | 634,769 | | 1982 | 632,750 | | 1981 | 626,604 | | 1980 | 619,073 | | 1979 | 611,485 | | 1978 | 606,738 | | 1977 | 603,479 | | 1976 | 600,234 | | 1975 | 594,741 | | 1974 | 583,912 | | 1973 | 567,270 | | 1972 | 547,558 | | 1971 | 531,062 | | 1970 | 514,071 | | 1969 | 510,820 | | 1968 | 508,664 | | 1967 | 504,838 | | 1966 | 498,095 | | 1965 | 488,593 | | 1964 | 477,573 | | 1963 | 465,679 | | 1962 | 454,349 | | 1961 | 443,490 | | 1960 | 431,992 |
|