Year | Value | 2021 | 2,820.8657883114 | 2020 | 2,509.054967069 | 2019 | 2,970.5049692976 | 2018 | 2,971.8724722373 | 2017 | 2,668.2895443877 | 2016 | 2,538.8876946642 | 2015 | 2,459.5865670784 | 2014 | 2,866.1974816377 | 2013 | 2,925.192086751 | 2012 | 2,756.0748804904 | 2011 | 2,969.0054755262 | 2010 | 2,657.5614614919 | 2009 | 2,823.7282700919 | 2008 | 2,957.8853706507 | 2007 | 2,580.1626272808 | 2006 | 1,861.2793128429 | 2005 | 1,668.8581002585 | 2004 | 1,640.2931039381 | 2003 | 1,465.5222553375 | 2002 | 1,124.9588974589 | 2001 | 1,050.3778622452 | 2000 | 1,016.0461449138 | 1999 | 1,155.668580656 | 1998 | 1,038.8284358363 | 1997 | 1,001.7598763465 | 1996 | 1,046.978671292 | 1995 | 1,047.0265898084 | 1994 | 898.01718246197 | 1993 | 1,119.6253861219 | 1992 | 828.26791739473 | 1991 | 761.67608119711 | 1990 | 751.55045475438 | 1989 | 670.6656092702 | 1988 | 670.57928815366 | 1987 | 602.21324799547 |
|