Year	constant 2015 US$
2006	21273706179.011326
2007	22438523081.80378
2008	25782831329.490845
2009	26041626419.68857
2010	30550766548.81167
2011	34151222246.094326
2012	35590516567.672386
2013	41215712123.26465
2014	39703629452.79312
2015	40092097811.84836
2016	39741225731.472206
2017	41495195871.60283
2018	42995888353.53185
2019	48702995263.50499
2020	49875338370.56766
2021	53671492108.27012
2022	56396760017.09527
2023	60388624517.33818