Year	current US$
2000	130.44115537
2001	119.26635179
2002	61.28023887
2003	64.92959666
2004	69.30661142
2005	74.44961586
2006	80.12144867
2007	90.27609595
2008	100.81919034
2009	106.53645566
2010	114.17827644
2011	114.71618646