Year	current US$
1990	-140167575.394118
1991	-11826416.4507803
1992	-326856199.623269
1993	-1143785006.66821
1994	-670756496.072166
1995	3359240633.92981
1996	-176540182.716434
1997	1097002792.41025
1998	1772971128.54736
1999	145432503.639104
2000	-366346174.390313
2001	-78674011.8281701
2002	352391370.419053
2003	229744872.828154
2004	152146435.994554
2005	550434129.523282
2006	-36363855.8965538
2007	-2079962817.6171
2008	1513493766.68775
2009	3508961536.85314
2010	3224166294.31309
2011	4567511523.10994
2012	4491474028.32572
2013	6070603149.37179
2014	5347243152.0435
2015	4069044239.08486
2016	5456074510.1225
2017	6810978617.91925
2018	6739759412.68756
2019	7639633901.93561
2020	5172309235.94961
2021	6984287173.83787