Year	current US$
1988	930000.0052899122
1989	3439999.9435991007
1990	9849999.770522114
1991	8950000.021606684
1992	17050000.011920925
1993	30579999.480396457
1994	29690000.064671043
1995	22989999.735727914
1996	22060000.075027343
1997	38770000.74833636
1998	54189999.395981446
1999	62979999.59066504
2000	44219999.92616475
2001	41650000.819936395
2002	63149999.441579044
2003	98210000.24490054
2004	115510000.35181634
2005	182750000.7264316
2006	140330000.40613124
2007	166499996.36970466
2008	175939999.2506951
2009	188099998.38098878
2010	447619999.48322785
2011	443079995.7178534
2012	552060002.9043852
2013	645600002.7861443
2014	688529993.9997495
2015	728549996.0742892
2016	744509998.7126888
2017	832170001.4732777
2018	844850001.277402
2019	1106939991.425723
2020	938930000.2530216
2021	1119790001.9660592
2022	1080239989.9195883