| Year | Value | | 2022 | 6,689,295 | | 2021 | 6,509,711 | | 2020 | 6,330,776 | | 2019 | 6,152,125 | | 2018 | 5,974,735 | | 2017 | 5,800,206 | | 2016 | 5,629,265 | | 2015 | 5,463,004 | | 2014 | 5,301,391 | | 2013 | 5,145,619 | | 2012 | 4,995,588 | | 2011 | 4,849,408 | | 2010 | 4,707,267 | | 2009 | 4,568,957 | | 2008 | 4,434,190 | | 2007 | 4,302,650 | | 2006 | 4,177,609 | | 2005 | 4,050,781 | | 2004 | 3,923,249 | | 2003 | 3,803,644 | | 2002 | 3,688,186 | | 2001 | 3,576,763 | | 2000 | 3,468,525 | | 1999 | 3,362,608 | | 1998 | 3,259,075 | | 1997 | 3,158,795 | | 1996 | 3,065,171 | | 1995 | 2,984,662 | | 1994 | 2,921,767 | | 1993 | 2,812,168 | | 1992 | 2,687,329 | | 1991 | 2,604,643 | | 1990 | 2,524,606 | | 1989 | 2,447,578 | | 1988 | 2,373,455 | | 1987 | 2,302,156 | | 1986 | 2,233,753 | | 1985 | 2,168,164 | | 1984 | 2,105,387 | | 1983 | 2,045,101 | | 1982 | 1,986,802 | | 1981 | 1,930,502 | | 1980 | 1,876,734 | | 1979 | 1,825,979 | | 1978 | 1,778,156 | | 1977 | 1,732,575 | | 1976 | 1,688,899 | | 1975 | 1,647,324 | | 1974 | 1,607,735 | | 1973 | 1,569,818 | | 1972 | 1,533,300 | | 1971 | 1,498,206 | | 1970 | 1,464,613 | | 1969 | 1,432,293 | | 1968 | 1,401,205 | | 1967 | 1,371,386 | | 1966 | 1,342,706 | | 1965 | 1,315,128 | | 1964 | 1,288,754 | | 1963 | 1,263,722 | | 1962 | 1,240,048 | | 1961 | 1,217,649 | | 1960 | 1,196,813 |
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