Year	current US$
2000	5616113544.934663
2001	5863264871.937996
2002	6566810318.6938505
2003	8310788074.777314
2004	9558876670.706476
2005	10411703594.150778
2006	11397617043.98514
2007	13569066544.996756
2008	16286293098.541338
2009	14869479668.525475
2010	14387457372.32011
2011	15517530067.089
2012	14606299984.890388
2013	15207100704.592033
2014	15384126786.006218
2015	13009603672.713003
2016	13237376133.889927
2017	13836574460.642878
2018	15026243448.19054
2019	14816692481.079926
2020	14548786525.099447
2021	16125127751.10879
2022	16549505573.52503
2023	19448928063.904385