Year	current US$
1995	-260384216.53816
1996	-227148426.839627
1997	-220872876.511793
1998	-287390555.932269
1999	-246192954.69031
2000	-345662926.344408
2001	-238483950.094749
2002	-156216760.259273
2003	24895979.0200001
2004	195673839.568279
2005	533083881.628133
2006	1056020296.67068
2007	1578313016.6992
2008	2034900999.29749
2009	257228619.32012
2010	56177310.9910237
2011	-138111503.352489
2012	196303356.439959
2013	273938140.587496
2014	103727013.724597
2015	542676260.977328
2016	476412876.517752
2017	445096787.546676
2018	277989586.77566
2019	-450608383.556727
2020	353036717.093047
2021	160951312.483957