Year	current US$
2001	6120474.199085308
2002	6587858.598806711
2003	7087094.0648507755
2004	6900329.659986888
2005	7340113.6771557415
2006	7556229.221128761
2007	7687122.947855672
2008	12387852.851563388
2009	13160911.356618138
2010	8887515.167007618
2011	6365181.602192513
2012	6282718.152683064
2013	8090809.717145663
2014	7405807.920008261
2015	7135680.520039495
2016	6776578.732794813
2017	7059956.306221515
2018	8474742.87178212
2019	8663469.168354128
2020	4033484.023066993
2021	4372672.7387609
2022	3996971.3534476296