Year	current US$
1990	80122378.0741001
1991	77057644.3358638
1992	81193619.2077783
1993	70391413.6735601
1994	70423098.12263
1995	77944307.4893866
1996	77989054.3773727
1997	74368104.7376379
1998	72544505.8235269
1999	71873050.5836657
2000	64596556.6404354
2001	63356902.8116782
2002	68498635.8622222
2003	79388630.8329993
2004	85743879.9584611
2005	86922288.812323
2006	90914326.6495492
2007	104127624.808864
2008	113230685.047415
2009	99578613.4929693
2010	85159708.1780698
2011	89747809.4174398
2012	80240305.1773902
2013	79027635.4159018
2014	71349733.2767791
2015	60475800.2680661
2016	53165182.0609602
2017	51998559.7697007
2018	56500924.7320508
2019	58565042.7641153
2020	63232089.6036057
2021	71909538.4537262