Year	current US$
2000	47983870.8270788
2001	30484464.4074696
2002	19367367.6770846
2003	21726064.4001405
2004	19733138.1633936
2005	21391403.1464477
2006	22782752.4440549
2007	27888285.302884
2008	37137771.7903695
2009	37907354.2020232
2010	54060671.8818696
2011	59656394.9353566
2012	6891864384.7412
2013	11834021534.6316
2014	13148404737.4215
2015	12414480082.5317
2016	9489358285.97519
2017	13320128569.6538