Year	current US$
2005	0
2006	0
2007	0
2008	0
2009	17349600
2010	18066700
2011	19428000
2012	20803300
2013	22046600
2014	23338700
2015	23338700
2016	23338700
2017	23338700
2018	23338700
2019	23338700
2020	23338700
2021	23338700
2022	23338700
2023	23338700