Year | Value | 2022 | 32,678 | 2021 | 31,518 | 2020 | 30,390 | 2019 | 29,300 | 2018 | 28,243 | 2017 | 27,206 | 2016 | 26,216 | 2015 | 25,279 | 2014 | 24,392 | 2013 | 23,572 | 2012 | 22,818 | 2011 | 22,135 | 2010 | 21,516 | 2009 | 20,896 | 2008 | 20,239 | 2007 | 19,632 | 2006 | 19,079 | 2005 | 18,520 | 2004 | 18,017 | 2003 | 17,599 | 2002 | 17,184 | 2001 | 16,768 | 2000 | 16,410 | 1999 | 16,133 | 1998 | 15,942 | 1997 | 15,812 | 1996 | 15,700 | 1995 | 15,588 | 1994 | 15,468 | 1993 | 15,327 | 1992 | 15,170 | 1991 | 15,024 | 1990 | 14,893 | 1989 | 14,767 | 1988 | 14,641 | 1987 | 14,516 | 1986 | 14,394 | 1985 | 14,277 | 1984 | 14,167 | 1983 | 14,063 | 1982 | 13,964 | 1981 | 13,867 | 1980 | 13,770 | 1979 | 13,673 | 1978 | 13,576 | 1977 | 13,482 | 1976 | 13,391 | 1975 | 13,303 | 1974 | 13,219 | 1973 | 13,136 | 1972 | 13,052 | 1971 | 12,966 | 1970 | 12,877 | 1969 | 12,785 | 1968 | 12,701 | 1967 | 12,625 | 1966 | 12,554 | 1965 | 12,483 | 1964 | 12,416 | 1963 | 12,351 | 1962 | 12,288 | 1961 | 12,224 | 1960 | 12,160 |
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