Year	current US$
1984	52095064.3327335
1985	53156603.7361128
1986	58727935
1987	58273495
1988	57440215
1989	63083720
1990	56746305
1991	30180052.7777778
1992	17278099.7247859
1993	34138033.1306798
1994	53053042.7072402
1995	69261077.5076483
1996	92997318.7674588
1997	65635997.7960109
1998	74552170.0521726
1999	94194228.9395209
2000	103529106.762803
2001	117813749.998257
2002	130723337.479666
2003	170291092.371147
2004	218993873.393034
2005	246457134.928229
2006	276848712.750801
2007	334246631.06817
2008	397189689.982943
2009	366306134.0879
2010	367574831.061924
2011	404295655.243036
2012	386165196.652801
2013	413360041.921637
2014	420811677.830542
2015	359944696.167548
2016	430652244.139292
2017	431208986.610019
2018	448927337.829779
2019	523879044.591748
2020	415568658.038877
2021	502821564.428393