Year | Value | 2014 | 1,725.0941715961 | 2013 | 1,683.4769569283 | 2012 | 1,884.7515176602 | 2011 | 1,829.6227600317 | 2010 | 2,144.0394863808 | 2009 | 2,166.3310895211 | 2008 | 2,524.022834372 | 2007 | 2,484.4318562543 | 2006 | 2,695.6226850221 | 2005 | 2,548.2998354093 | 2004 | 2,440.2430505559 | 2003 | 2,615.7361640508 | 2002 | 2,330.1624484567 | 2001 | 2,245.6123517247 | 2000 | 2,038.5219792469 | 1999 | 2,168.4816397338 | 1998 | 2,313.9607260358 | 1997 | 2,318.4749556687 | 1996 | 2,463.2773192214 | 1995 | 2,606.3253420019 | 1994 | 2,762.8526225871 | 1993 | 3,214.6515231021 | 1992 | 3,693.010635427 | 1991 | 4,283.5857541176 | 1990 | 4,031.7224200584 |
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