Year	current US$
1995	-271052108.028413
1996	-236870140.296609
1997	-230311642.528064
1998	-297551309.380729
1999	-256009381.821606
2000	-355184044.604793
2001	-248475194.619555
2002	-166358513.969558
2003	13788431.2521524
2004	181918713.609803
2005	514826128.598911
2006	1032572327.72416
2007	1546132649.93977
2008	1993411842.65857
2009	219789569.79499
2010	14208988.6961466
2011	-180996948.970336
2012	154952963.559576
2013	232750391.244542
2014	62537255.863442
2015	504807259.591935
2016	438716403.508765
2017	408171636.418515
2018	241255560.257258
2019	-488316165.567438
2020	315714453.259612
2021	122216021.749884