Year	current US$
2005	-5403783837.48086
2006	-5769333875.35512
2007	-6692092683.64773
2008	-5932980865.02565
2009	-4854370595.56264
2010	-4474945070.83196
2011	-5612252679.89588
2012	-4262860363.67289
2013	-4045436914.0628
2014	11539710568.7899
2015	9992555077.92531
2016	9005073611.74153
2017	8055752700.22929
2018	8152763890.06394
2019	9059935897.52276
2020	11934151521.1279