Year	current US$
1996	-189637634.076472
1997	-316707570.583803
1998	-377761436.916498
1999	-127521306.285483
2000	-122859367.760437
2001	-52230131.681372
2002	-20615387.8028752
2003	-61054126.7404593
2004	134449716.461141
2005	176993789.384826
2006	200519307.535124
2007	365894590.53938
2008	525510335.639522
2009	252001.595318317
2010	365087891.566217
2011	329636788.593646
2012	647851580.70592
2013	932701689.402757
2014	952789240.124232
2015	250364439.270479
2016	596607264.025778
2017	600245863.739769
2018	410114878.096823
2019	489414659.30805
2020	525919908.967195
2021	589760534.3428