Year	current US$
2001	3274829.5683755986
2002	4216068.41744766
2003	5669358.592483212
2004	6551714.52681209
2005	7205087.720461415
2006	10880350.573150825
2007	11882641.002219513
2008	17804722.92929352
2009	19249709.966133717
2010	28125286.52231855
2011	27923630.212175727
2012	20190063.935896493
2013	24736981.329343274
2014	26371964.599180806
2015	24730940.22531802
2016	25645476.02497745
2017	28826704.54221355
2018	35412431.85821812
2019	33239434.48617673
2020	41450346.68976393
2021	42388695.95156229
2022	35261746.64878094