Year	current US$
1999	2356276.60069207
2000	4323108.47219546
2001	4528052.88610086
2002	3224827.51946115
2003	3881133.40250381
2004	8696489.92961487
2005	7162382.82134577
2006	10741652.5643296
2007	12632927.017726
2008	9141559.76764478
2009	12514457.3053831
2010	14278624.9239779
2011	16928911.0471352
2012	20723053.994901
2013	20640175.108854
2014	16335086.9792382
2015	18587890.8269827
2016	20282719.8268633
2017	16328761.3327481
2018	19899017.7223108
2019	25474128.7558912
2020	27508844.2074603
2021	51031663.5957961
2022	81144899.5911654
2023	84552017.2096461