Year	constant 2015 US$
2000	9219116607.583961
2001	9442129269.278378
2002	9945636148.94902
2003	10216639793.672365
2004	11335901339.342754
2005	11501812462.249306
2006	12405712270.724518
2007	13052273769.21128
2008	13966156916.457182
2009	13528372649.207611
2010	13245020716.7081
2011	12949529212.985456
2012	12532378829.42986
2013	12843379825.98486
2014	12974627815.330307
2015	13651574237.753399
2016	14364885906.267382
2017	14895609378.106693
2018	15636848938.983654
2019	16297150905.532352
2020	15751260391.163414
2021	17164361539.092869