Year	current US$
2006	14669999.914243817
2007	13470000.065863127
2008	17260000.0500679
2009	12120000.092312692
2010	16349999.949336058
2011	12229999.817907812
2012	10140000.000596045
2013	15369999.79615211
2014	12699999.8409301
2015	9346644.49840784
2016	11156961.469445376
2017	10309473.562054334
2018	14382687.397301193
2019	11217072.399333121
2020	12764138.756319884
2021	12562611.939385531
2022	11562007.453292608