Year	constant 2015 US$
2002	27354497309.13636
2003	30268528849.0865
2004	33262568635.50547
2005	35759413932.17661
2006	41996077865.17595
2007	38320300591.58199
2008	33081626281.231457
2009	40154502463.46645
2010	44771740266.507286
2011	53706872567.87664
2012	59595855487.26329
2013	67634704886.401695
2014	73143633551.20299
2015	66790173500.1792
2016	60522704846.363594
2017	59032740711.373405
2018	60886675785.909164
2019	70481125005.40085
2020	66217990807.49688
2021	65728080000.58723