Year	current US$
2002	-3069058938.03028
2003	-5841216564.4335
2004	-1378297369.9446
2005	-1311379359.86253
2006	-1224789400.44977
2007	-68485253.4957746
2008	-2109851966.43946
2009	-2633540014.0692
2010	-4275104529.53232
2011	-6227069402.44899
2012	-9212802064.11118
2013	-9459159997.47825
2014	-10307791105.0038
2015	-7585663328.71179
2016	-7551652812.26698
2017	-9545882282.48344
2018	-11944328902.8414
2019	-13142152831.4757
2020	-6012709782.09107
2021	-6087504527.41355