Year	current US$
1998	457113148.30068207
1999	461097788.8863818
2000	447954051.12151396
2001	494918763.7841798
2002	522426247.9112814
2003	719104034.7755189
2004	861312046.4869343
2005	986626010.9441082
2006	1137294581.3233976
2007	1797807245.8577394
2008	2030327932.1678698
2009	1740556296.946912
2010	1698317063.6354089
2011	1687162288.8272464
2012	1578805189.708673
2013	1619187477.5763898
2014	1661247289.1275394
2015	1677584445.0105686
2016	1785087022.2599497
2017	2014057336.2439225
2018	2298987016.7407155
2019	2366885954.273602
2020	1508394380.3545961
2021	2380456723.346353
2022	2977207544.128015
2023	3277119736.617508