Year	constant 2015 US$
2003	8038639337.911354
2004	7245375395.068653
2005	7805698300.303782
2006	9469425615.541115
2007	10455823062.097258
2008	9320176116.070013
2009	8876035619.29831
2010	36410780060.33506
2011	10421862584.996895
2012	32464707330.012844
2013	23939585224.521023
2014	11062068957.63367
2015	10828621281.340273
2016	10185995057.168917
2017	23695918839.91307
2018	29863653351.188843
2019	31267089941.82285
2020	10525774408.897121
2021	23798406527.28835
2022	19050764817.5317
2023	20403702734.247097