Year	TDS, current US$
2006	9259252.2
2007	4514050.9
2008	7292000
2009	7411000
2010	8675000
2011	9747904.9
2012	9913738.5
2013	11680274.6
2014	19264959.4
2015	25183082.9
2016	27113616.5
2017	28252194.6
2018	29245792.8
2019	28268056.2
2020	28144887.7
2021	19234000
2022	12017000