Year	current US$
1995	1498225040.5960994
1996	1502201074.6394968
1997	1411634578.108063
1998	1461211915.8567622
1999	1487697147.6921709
2000	1610603703.7104135
2001	1677533525.3962626
2002	1632109246.0947657
2003	1621032423.8709943
2004	2792233986.666537
2005	3229845303.720499
2006	3489182389.1773868
2007	4868019170.166481
2008	5913359449.152607
2009	6360555771.560047
2010	8999222099.287922
2011	5382180916.984522
2012	6422833642.659213
2013	6527394339.409516
2014	6845711100.483165
2015	5583628635.3473625
2016	5751998924.68914
2017	5688459475.320784
2018	7505403567.1234255
2019	7102269084.45295