Year	current US$
1984	1757142855.9183671
1985	2366666615.5555553
1986	1776842097.1634347
1987	1087273103.6963859
1988	598961269.2978786
1989	714046821.093797
1990	865559879.4004065
1991	1028087972.3108478
1992	1127806944.6151268
1993	1327748689.8809426
1994	1543606345.1168365
1995	1763536304.5396364
1996	1873671550.3463552
1997	1747011857.3310688
1998	1280177838.7190535
1999	1454430642.449592
2000	1731198022.4676313
2001	1768619058.3464744
2002	1758176653.0774584
2003	2023324407.2841384
2004	2366398119.863208
2005	2735558734.737903
2006	3455030060.978498
2007	4223152739.0405164
2008	5446433157.401138
2009	5836137329.633054
2010	7131771014.704564
2011	8750104617.173029
2012	10192846339.40287
2013	11983252626.545183
2014	13279245886.385435
2015	14426380125.648829
2016	15912501722.614256
2017	17071155481.49936
2018	18141641089.796326
2019	18740561512.555496
2020	18981805250.242397
2021	18827148530.934723
2022	15468785203.753174
2023	15843155731.25518