Year	current US$
2006	4660000.026226037
2007	3619999.989867206
2008	3619999.9898672113
2009	2809999.987483025
2010	4289999.961853031
2011	2730000.004172324
2012	3109999.984502791
2013	3269999.980926513
2014	4480000.048875809
2015	3195008.322596545
2016	3812599.305994809
2017	4912084.374576807
2018	3907015.2491331086
2019	3332662.321627139
2020	3620673.552155497
2021	5023923.993110657
2022	6062174.469232556