Year	current US$
2000	11500000
2001	14100000.3814697
2002	18200000.762939498
2003	16399999.618530298
2004	18200000.762939498
2005	18000000
2006	17399999.6185303
2007	17100000.3814697
2008	19100000.3814697
2009	16100000.381469702
2010	15199999.8092651
2011	17000000
2012	19399999.6185303
2013	18500000
2014	17200000.762939498
2015	21899999.6185303
2016	23799999.237060502
2017	23299999.237060502