Year	constant 2015 US$
2012	7670.5857668543385
2013	7783.128861477463
2014	7852.676206627842
2015	7835.684222932421
2016	7735.13127038843
2017	7943.961590432196
2018	8208.354195488613
2019	8399.007876220734
2020	8219.916760293552
2021	8622.484470152607
2022	8773.583427087517