Year	current US$
1992	7112007.37381363
1993	8421708.86560086
1994	9573989.61038962
1995	14053575
1996	10973375.2418708
1997	9287915.60846914
1998	23994683.5463671
1999	25229203.5056301
2000	21006429.0766799
2001	17353026.451835
2002	10172436.7879815
2003	18932828.9870946
2004	24718968.1320037
2005	21671173.0327498
2006	20682302.3791871
2007	22544844.2328456
2008	23537076.6022764
2009	31657177.92
2010	27002064.5385366
2011	35113028.7687805