Year	constant 2021 US$
1991	4599999.90463257
1992	38110000.6103516
1993	182360000.61035198
1994	304500000
1995	306880004.88281304
1996	419670013.42773396
1997	244800003.05175802
1998	290970001.220703
1999	313589996.33789104
2000	331570007.324219
2001	336070007.324219
2002	450660003.66210896
2003	344529998.779297
2004	327929992.675781
2005	215380004.882813
2006	259709991.455078
2007	298290008.544922
2008	246529998.779297
2009	283600006.10351604
2010	335989990.234375
2011	393820007.324219
2012	285049987.792969
2013	288309997.558594
2014	270959991.455078
2015	398079986.57226604
2016	375529998.779297
2017	288209991.455078
2018	149970001.220703
2019	454640014.64843804
2020	133929992.675781
2021	161949996.94824198
2022	322529998.779297