Year	current US$
1995	111268970.81812285
1996	121915476.52381793
1997	113995515.21141575
1998	89975959.09718084
1999	111176465.17076617
2000	142469604.30778235
2001	114873545.0328628
2002	103974030.3196065
2003	123201264.95323545
2004	165207262.4347345
2005	176629289.62397742
2006	187007874.1510762
2007	193478622.3258589
2008	221990040.6230618
2009	217849999.42779523
2010	237290000.9155274
2011	280450001.2397767
2012	275500000.834465
2013	278649996.28067017
2014	276196737.17284894
2015	284112523.1282376
2016	305506532.7755939
2017	328184189.5026728
2018	332327084.5667514