Year	current US$
1995	956818043.588444
1996	990476478.204574
1997	1471690116.5299957
1998	1458502373.7591712
1999	1252009495.0366852
2000	1456951230.0388432
2001	1666443677.1687527
2002	2156927773.0816193
2003	3038124083.4743376
2004	3581178589.1703925
2005	4447574325.164822
2006	5036611871.000125
2007	7623958675.424192
2008	7894974388.994585
2009	4074117319.988879
2010	5986272722.025762
2011	8392366594.545125
2012	8744435246.088888
2013	9758808200.376507
2014	10406490830.081211
2015	8400112109.305855
2016	8578966237.627258
2017	10267216951.42708
2018	11917966169.675285
2019	12658565489.160765
2020	13593932655.369688
2021	16609799351.689655
2022	17686835385.23937
2023	18313401329.855225