Year	current US$
2000	59534200
2001	25170430
2002	276469015
2003	27185962
2004	19143747
2005	28130598
2006	35267158
2007	48350756
2008	94489469
2009	108801397
2010	24238041
2011	41578525
2012	51784569
2013	164550725
2014	147031604
2015	88899617
2016	50727591
2017	50603851
2018	99026883
2019	52879238
2020	60541945