Year	constant 2015 US$
2012	4972544720.378031
2013	5456475540.485621
2014	5899104301.410987
2015	6371983423.116256
2016	6668351216.051385
2017	6969271509.646039
2018	7442428078.192752
2019	7953066902.16956
2020	7673541285.734377
2021	7513009289.667931
2022	7697667031.712502
2023	8119348070.250798