Year	current US$
1994	33677041175.2089
1995	37221636844.1856
1996	43009341713.1852
1997	43497285449.3319
1998	47730689633.5673
1999	48551241634.3247
2000	53105555800.947
2001	50648257572.7112
2002	59387967703.5737
2003	69482535429.1942
2004	84732086931.0667
2005	108996578749.747
2006	141539009066.174
2007	146809173636.101
2008	193786526811.995
2009	189926965015.462
2010	204557557143.143
2011	226482024165.261
2012	246784780565.363
2013	299305382081.159
2014	342354408173.055
2015	274759771174.097
2016	250417475831.165
2017	251502583416.643