Year	current US$
1995	374090983.3878083
1996	368490818.96583515
1997	401588796.71725744
1998	437996572.2438219
1999	471262134.69271976
2000	507854253.3865074
2001	514507365.8762869
2002	523378182.5293263
2003	545555224.161925
2004	644645866.9178665
2005	497679969.7966948
2006	434217423.3125525
2007	460938495.5164019
2008	478752543.65230143
2009	385228790.9388286
2010	330673268.5226361
2011	290591660.216862
2012	661299712.7365037
2013	642289043.3765221
2014	650436473.1022284
2015	483294009.60369825
2016	449730361.61693627
2017	476863970.5267625
2018	310624573.9280315
2019	162237038.61209288