Year | Value | 2011 | 137.41499744877 | 2010 | 157.90244038169 | 2009 | 118.91489389659 | 2008 | 121.70343675097 | 2007 | 123.0158543651 | 2006 | 131.46182726944 | 2005 | 148.77460438167 | 2004 | 154.02010823027 | 2003 | 161.12316945106 | 2002 | 153.02780099457 | 2001 | 150.44862906378 | 2000 | 148.54012221034 | 1999 | 177.19042108074 | 1998 | 165.25859849587 | 1997 | 156.18513108326 | 1996 | 158.14997958536 | 1995 | 160.78987916633 | 1994 | 155.11724474841 | 1993 | 141.41257254966 | 1992 | 133.52997667719 |
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