Year	constant 2015 US$
2013	594.0364483448095
2014	615.3176525238957
2015	639.2031226547597
2016	656.7630932242262
2017	696.3083726104367
2018	693.526353491401
2019	691.3729697070156
2020	662.4935648341292
2021	660.5249926294243
2022	674.1129762021733