Year	current US$
2012	73722.0942974091
2013	77271.0740566254
2014	75350.0014543533
2015	69459.99711751941
2016	85369.9967265129
2017	93440.0036931038
2018	83881.8550109863
2019	436060.011386871
2020	38453.299552202196
2021	144199.997186661