Year	current US$
2004	-148079941.084396
2005	13588159.1616785
2006	689587617.414167
2007	331741362.723003
2008	771856524.08682
2009	400540130.193515
2010	-294943779.549455
2011	-240282910.336255
2012	-375874356.631477
2013	-663148458.135199
2014	221167232.91078
2015	2672006530.02778
2016	1670499149.21193
2017	1798641860.89806
2018	1816141115.07621
2019	1797740360.85004
2020	1564392595.27255