Year	current US$
1987	46988913310.74596
1988	51434976610.28285
1989	60422876831.850044
1990	75273208889.80685
1991	69743957917.66664
1992	62401894369.93823
1993	63194626736.380356
1994	46308338620.45396
1995	51118962735.97007
1996	55050938360.31279
1997	53338344475.05204
1998	57190186444.86361
1999	48357611489.65291
2000	46254138898.45861
2001	37843661810.992
2002	44658125302.2998
2003	52825427414.84592
2004	64696627976.921234
2005	76230645697.03203
2006	78378943646.20236
2007	91212553641.84775
2008	107254168221.26247
2009	95865471789.96199
2010	124157601131.35786
2011	136815439619.3072
2012	137262927432.6283
2013	140934570064.95435
2014	138809757655.03036
2015	128909492046.22849
2016	119385557321.08437
2017	113659703392.62645
2018	107096826605.64636
2019	113064107912.76903
2020	115487221601.45415
2021	125904698306.34145
2022	139073330032.83264
2023	150894209722.27963