Year | Value | 2022 | 69,243 | 2021 | 69,377 | 2020 | 69,874 | 2019 | 70,391 | 2018 | 70,575 | 2017 | 70,556 | 2016 | 70,520 | 2015 | 70,544 | 2014 | 70,661 | 2013 | 70,843 | 2012 | 70,967 | 2011 | 70,915 | 2010 | 70,670 | 2009 | 70,313 | 2008 | 69,914 | 2007 | 69,377 | 2006 | 68,407 | 2005 | 66,969 | 2004 | 65,329 | 2003 | 63,710 | 2002 | 61,950 | 2001 | 61,531 | 2000 | 61,399 | 1999 | 61,458 | 1998 | 60,316 | 1997 | 58,125 | 1996 | 56,728 | 1995 | 55,196 | 1994 | 54,090 | 1993 | 53,930 | 1992 | 54,302 | 1991 | 54,230 | 1990 | 53,720 | 1989 | 53,491 | 1988 | 53,349 | 1987 | 53,135 | 1986 | 52,774 | 1985 | 52,231 | 1984 | 51,486 | 1983 | 50,504 | 1982 | 49,260 | 1981 | 47,816 | 1980 | 46,230 | 1979 | 44,507 | 1978 | 42,717 | 1977 | 40,933 | 1976 | 39,168 | 1975 | 37,383 | 1974 | 35,535 | 1973 | 33,572 | 1972 | 31,491 | 1971 | 29,436 | 1970 | 27,661 | 1969 | 26,467 | 1968 | 26,153 | 1967 | 26,872 | 1966 | 28,427 | 1965 | 30,360 | 1964 | 32,153 | 1963 | 33,312 | 1962 | 33,452 | 1961 | 32,572 | 1960 | 31,077 |
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