| Year | Value | | 2022 | 3,331,052 | | 2021 | 3,355,424 | | 2020 | 3,418,117 | | 2019 | 3,528,095 | | 2018 | 3,675,544 | | 2017 | 3,833,334 | | 2016 | 3,979,578 | | 2015 | 4,092,957 | | 2014 | 4,156,840 | | 2013 | 4,174,832 | | 2012 | 4,163,050 | | 2011 | 4,138,219 | | 2010 | 4,111,665 | | 2009 | 4,090,275 | | 2008 | 4,081,383 | | 2007 | 4,078,870 | | 2006 | 4,068,146 | | 2005 | 4,043,894 | | 2004 | 4,008,978 | | 2003 | 3,966,456 | | 2002 | 3,916,331 | | 2001 | 3,863,397 | | 2000 | 3,813,519 | | 1999 | 3,752,038 | | 1998 | 3,680,856 | | 1997 | 3,608,060 | | 1996 | 3,520,560 | | 1995 | 3,418,352 | | 1994 | 3,310,469 | | 1993 | 3,196,441 | | 1992 | 3,080,218 | | 1991 | 2,983,992 | | 1990 | 2,923,031 | | 1989 | 2,894,584 | | 1988 | 2,889,404 | | 1987 | 2,899,724 | | 1986 | 2,876,407 | | 1985 | 2,841,305 | | 1984 | 2,825,153 | | 1983 | 2,792,225 | | 1982 | 2,751,252 | | 1981 | 2,722,479 | | 1980 | 2,663,069 | | 1979 | 2,575,671 | | 1978 | 2,475,261 | | 1977 | 2,355,676 | | 1976 | 2,237,442 | | 1975 | 2,135,972 | | 1974 | 2,050,393 | | 1973 | 1,942,593 | | 1972 | 1,803,354 | | 1971 | 1,673,252 | | 1970 | 1,552,190 | | 1969 | 1,413,341 | | 1968 | 1,311,814 | | 1967 | 1,257,885 | | 1966 | 1,218,260 | | 1965 | 1,188,460 | | 1964 | 1,168,147 | | 1963 | 1,155,341 | | 1962 | 1,149,610 | | 1961 | 1,152,228 | | 1960 | 1,162,671 |
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