Year	current US$
2008	577121406.815831
2009	571238476.456262
2010	631099460.296025
2011	754212328.342078
2012	736733939.480216
2013	805942214.976651
2014	854864776.625816
2015	778237554.654342
2016	825153791.545417
2017	892699614.187575
2018	989129814.545668
2019	984419499.443282
2020	993181846.633533
2021	1242731403.8551