Year	constant 2015 US$
2008	4792003236.4388895
2009	4892248097.010425
2010	5132091836.022711
2011	5500712767.9099865
2012	5639376667.760211
2013	5893565358.79545
2014	6074103615.357584
2015	6398632302.817277
2016	6729529824.782769
2017	7107629272.001732
2018	7327026796.153845
2019	7720487927.838712
2020	7321575523.35131
2021	8062888491.094263
2022	8353656625.717758
2023	8685550300.677584