Year	constant 2015 US$
2012	6040117889.1838
2013	6298388687.914398
2014	6665127485.515174
2015	6629252381.425264
2016	7095965431.354513
2017	7298531925.4848175
2018	7440371339.596696
2019	7500776000.386848
2020	6680179249.668426
2021	6927645033.02465
