Year	constant 2015 US$
2012	3419614129759.752
2013	3487309534902.1226
2014	3536365776971.2124
2015	3547000560777.0635
2016	3519228045430.6587
2017	3630896731387.595
2018	3767736203362.5674
2019	3872172419394.244
2020	3800103110523.2812
2021	3992518770440.093
2022	4012530376333.3325