Year | Value | 2014 | 908.46897345547 | 2013 | 973.5380658408 | 2012 | 1,233.191260723 | 2011 | 1,551.4237926247 | 2010 | 1,744.0129883461 | 2009 | 1,472.1526607603 | 2008 | 1,500.1821500071 | 2007 | 1,478.9640441086 | 2006 | 1,508.3875269922 | 2005 | 1,479.9642501164 | 2004 | 1,377.7366929796 | 2003 | 1,279.7992386276 | 2002 | 1,227.8591362712 | 2001 | 1,146.8232684607 | 2000 | 1,071.6440267864 | 1999 | 1,020.2374021937 | 1998 | 964.41788938735 | 1997 | 918.49865426342 | 1996 | 895.92143629708 | 1995 | 834.25030303665 | 1994 | 752.94703743389 | 1993 | 688.70197812523 | 1992 | 703.99165243152 | 1991 | 702.37855043243 | 1990 | 690.86975287928 | 1989 | 679.65215836303 | 1988 | 631.33847531072 | 1987 | 594.71113960713 | 1986 | 611.86588933845 | 1985 | 624.51818749131 | 1984 | 595.88704385623 | 1983 | 606.78396264293 | 1982 | 525.19495299742 | 1981 | 416.24858004473 | 1980 | 357.79485993522 | 1979 | 317.1817517711 | 1978 | 289.5231255694 | 1977 | 224.42766896744 | 1976 | 230.83844363592 | 1975 | 237.69108322309 | 1974 | 211.87315050958 | 1973 | 183.20421458226 | 1972 | 202.55464099812 | 1971 | 177.10413631451 |
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