Year	current US$
1983	4659354.936097413
1984	1491484.4301118613
1985	6677229.515617927
1986	6173185.401023572
1987	4569909.6031825505
1988	-1426847.719916496
1989	672170.4210544458
1990	2631129.335383564
1991	6133595.9885386815
1992	1137646.394807394
1993	2368791.1762528685
1994	721618.4871783858
1995	-1257682.1186145872
1996	-366992.1857517522
1997	2088547.510140675
1998	1011625.8552747662
1999	1177609.9167150883
2000	1997917.3273870081
2001	-13763.440860215054
2002	1408062.8393732274
2003	1522229.8716546616
2004	2433133.5539851505
2005	2782714.833617498
2006	4727007.071611618
2007	5076266.015863331
2008	7351913.2002141
2009	8965641.105686331
2010	10742387.406132715
2011	13915408.422210973
2012	5440561.327756038
2013	5341513.076129783
2014	6757893.629250232
2015	6101523.833098019
2016	7135284.627794423
2017	5805928.062158451
2018	4048472.7454273133
2019	5055237.182141067
2020	5711561.795805166
2021	6121376.852972751
2022	6293674.448870254