Year	current US$
2007	1262472336
2008	1546892971
2009	961342738
2010	1263157746
2011	1582034683
2012	1712052546
2013	1906924576
2014	2092843539
2015	1919840823
2016	1962841077
2017	2317431157
2018	2515950503
2019	2526907344
2020	2619106962
2021	3107136428
2022	3569439157