| Year | Value | | 2022 | 1,687,738 | | 2021 | 1,794,977 | | 2020 | 1,767,571 | | 2019 | 1,733,632 | | 2018 | 1,700,529 | | 2017 | 1,669,249 | | 2016 | 1,651,934 | | 2015 | 1,644,524 | | 2014 | 1,653,546 | | 2013 | 1,655,679 | | 2012 | 1,614,395 | | 2011 | 1,547,986 | | 2010 | 1,436,636 | | 2009 | 1,288,747 | | 2008 | 1,166,302 | | 2007 | 1,107,173 | | 2006 | 1,134,902 | | 2005 | 1,259,838 | | 2004 | 1,442,607 | | 2003 | 1,653,888 | | 2002 | 1,868,674 | | 2001 | 1,981,503 | | 2000 | 1,978,870 | | 1999 | 1,883,533 | | 1998 | 1,702,584 | | 1997 | 1,518,458 | | 1996 | 1,407,485 | | 1995 | 1,406,648 | | 1994 | 1,503,113 | | 1993 | 1,663,025 | | 1992 | 1,803,952 | | 1991 | 1,894,647 | | 1990 | 1,946,146 | | 1989 | 1,961,337 | | 1988 | 1,934,457 | | 1987 | 1,872,509 | | 1986 | 1,789,059 | | 1985 | 1,672,402 | | 1984 | 1,552,741 | | 1983 | 1,442,909 | | 1982 | 1,315,773 | | 1981 | 1,200,711 | | 1980 | 1,158,073 | | 1979 | 1,209,566 | | 1978 | 1,280,049 | | 1977 | 1,396,018 | | 1976 | 1,562,151 | | 1975 | 1,665,981 | | 1974 | 1,678,275 | | 1973 | 1,642,808 | | 1972 | 1,589,009 | | 1971 | 1,519,611 | | 1970 | 1,474,886 | | 1969 | 1,433,428 | | 1968 | 1,389,486 | | 1967 | 1,351,206 | | 1966 | 1,289,869 | | 1965 | 1,264,092 | | 1964 | 1,243,514 | | 1963 | 1,178,070 | | 1962 | 1,106,890 | | 1961 | 1,063,100 | | 1960 | 1,001,360 |
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