Year	constant 2015 US$
2012	8791.175390049513
2013	8903.3894249253
2014	8838.713030590427
2015	8959.250103416856
2016	8878.304706970092
2017	8715.322047356742
2018	9518.310265662438
2019	10368.823482389787
2020	10540.548051907994
2021	10633.244954354304
2022	11078.380365018322