Year	current US$
2005	3600053595.4686165
2006	4651757606.426284
2007	5641596705.634523
2008	9827684040.363077
2009	3978209448.2622643
2010	4380206413.953927
2011	7648765006.690969
2012	6074978937.975696
2013	6236398754.577711
2014	5995811748.252932
2015	1903839189.5960085
2016	1149364742.3506105
2017	1866489970.1932337
2018	2040958194.3899982
2019	838980645.6838182
2020	372305785.9963082
2021	1623301271.8367655
2022	3058656296.8741713
2023	1028409264.3921