Year	current US$
1995	12242080.5967621
1996	10866223.4051186
1997	10645368.3822804
1998	10584592.3912899
1999	10116626.0128504
2000	7958534.83750976
2001	9562340.41299878
2002	9567238.36742992
2003	12369372.9784075
2004	14126746.9325429
2005	14090577.5958997
2006	16891066.2907157
2007	20342122.5312108
2008	21969578.6236606
2009	18580895.2673932
2010	15042881.0008208
2011	16137316.2569212
2012	14484407.3388341
2013	12881692.7735742
2014	12318501.4154362
2015	8509880.43004361
2016	7883881.69991105
2017	8117920.55856072
2018	9304583.79177949
2019	9625117.23945571
2020	10169784.0797819
2021	11776408.6100215