Year	current US$
2005	11698615.38
2006	11208420.6
2007	10745635.56
2008	9725275.14
2009	9284464.74
2010	8994424.38
2011	9357489.06
2012	9690571.02
2013	9837794.52
2014	9527278.23144
2015	16785283.38
2016	18356000
2017	19688000
2018	19998000
2019	19715000
2020	18131000
2021	14914000
2022	15097000