Year | Value | 2023 | 33,124 | 2022 | 32,366 | 2021 | 31,661 | 2020 | 30,845 | 2019 | 29,931 | 2018 | 29,001 | 2017 | 28,155 | 2016 | 27,382 | 2015 | 26,678 | 2014 | 26,005 | 2013 | 25,268 | 2012 | 24,473 | 2011 | 23,697 | 2010 | 22,925 | 2009 | 22,139 | 2008 | 21,411 | 2007 | 20,731 | 2006 | 20,016 | 2005 | 19,306 | 2004 | 18,655 | 2003 | 18,087 | 2002 | 17,685 | 2001 | 17,382 | 2000 | 16,964 | 1999 | 16,435 | 1998 | 15,893 | 1997 | 15,372 | 1996 | 14,877 | 1995 | 14,420 | 1994 | 14,011 | 1993 | 13,661 | 1992 | 13,431 | 1991 | 13,329 | 1990 | 13,208 | 1989 | 12,826 | 1988 | 12,349 | 1987 | 11,989 | 1986 | 11,672 | 1985 | 11,441 | 1984 | 11,282 | 1983 | 11,180 | 1982 | 11,118 | 1981 | 11,082 | 1980 | 11,028 | 1979 | 10,904 | 1978 | 10,774 | 1977 | 10,613 | 1976 | 10,402 | 1975 | 10,188 | 1974 | 9,961 |
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