Year	current US$
1995	100711508.30482519
1996	98697995.14764975
1997	90668455.17366004
1998	78080845.9422418
1999	103791018.05252329
2000	121901491.61224583
2001	134081049.75052209
2002	150496976.17773694
2003	180151552.76417214
2004	193835021.6727185
2005	275209555.16581666
2006	244676856.7374814
2007	270236701.3301166
2008	333164282.53524625
2009	226456492.81123278
2010	235253934.36345083
2011	280358934.327947
2012	314110059.4331937
2013	304184474.9080862
2014	336372761.242856
2015	333992276.859096
2016	361523094.45614785
2017	369285542.0490335
2018	479184412.6223456
2019	458153282.9606903