| Year | Value | | 2023 | 14,459.895751577 | | 2022 | 14,907.077867966 | | 2021 | 15,003.714448357 | | 2020 | 14,763.741998859 | | 2019 | 15,204.063852102 | | 2018 | 15,569.549710811 | | 2017 | 15,477.324919979 | | 2016 | 15,759.605235032 | | 2015 | 15,839.62894535 | | 2014 | 16,486.874523516 | | 2013 | 16,532.143674843 | | 2012 | 16,119.569981559 | | 2011 | 16,607.190943557 | | 2010 | 16,236.475656491 | | 2009 | 16,317.777998017 | | 2008 | 17,382.254642167 | | 2007 | 17,525.89005295 | | 2006 | 17,468.564937121 | | 2005 | 17,852.891622211 | | 2004 | 16,823.828141108 | | 2003 | 16,920.870977766 | | 2002 | 16,912.198554561 | | 2001 | 16,625.782880582 | | 2000 | 16,844.474614096 | | 1999 | 16,701.694790148 | | 1998 | 16,456.944219819 | | 1997 | 16,677.485027393 | | 1996 | 16,645.166205801 | | 1995 | 16,561.86776531 | | 1994 | 16,413.314412846 | | 1993 | 16,347.179987257 | | 1992 | 16,192.757573297 | | 1991 | 16,207.839380371 | | 1990 | 16,190.703321763 |
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