Year	constant 2015 US$
2006	3486655890.003922
2007	3891852891.448957
2008	4257518938.672779
2009	3776078273.3124332
2010	3832768890.609131
2011	3844221254.4663873
2012	3748325409.702866
2013	3805789037.956541
2014	3903658125.9568024
2015	3988138192.114466
2016	4166834721.9795012
2017	4285748590.719931
2018	4496941085.012991
2019	4615917502.731619
2020	4451431392.611557
2021	4596844785.058791
2022	4962912089.8786
2023	5207141066.184868