Year	current US$
1992	0
1993	0
1994	304308.804332534
1995	0
1996	0
1997	4437063.15146897
1998	9645055.87982695
1999	11245633.4332013
2000	13884308.9585048
2001	11392525.2055068
2002	15085391.9168691
2003	25970639.563567
2004	32392249.1376941
2005	39914940.8413406
2006	61140379.2832957
2007	74020438.1011615
2008	98500912.6058294
2009	79209440.5166762
2010	93317831.0138157
2011	140908640.815859
2012	146532776.718439
2013	144044583.560776
2014	120410429.99595
2015	105443561.560631
2016	98354956.1067666
2017	126694385.237495
2018	123033154.446359
2019	112294581.028796
2020	102827124.952049
2021	104981707.838541