Year	current US$
2011	8220000.26702881
2012	15560000.4196167
2013	18940000.5340576
2014	25969999.3133545
2015	31809999.4659424
2016	25040000.915527303
2017	24719999.3133545
2018	22920000.0762939
2019	21379999.1607666
2020	24370000.8392334
2021	25270000.4577637
2022	22030000.6866455