Year	constant 2021 US$
1988	10050000.1907349
1989	19040000.915527303
1990	17190000.5340576
1991	480140014.64843804
1992	593460021.972656
1993	428540008.544922
1994	238580001.831055
1995	241210006.71386698
1996	312790008.544922
1997	245639999.38964802
1998	402230010.986328
1999	742859985.351563
2000	524150024.414063
2001	452450012.207031
2002	483619995.11718804
2003	467440002.441406
2004	373869995.11718804
2005	376950012.207031
2006	379500000
2007	280700012.207031
2008	337089996.33789104
2009	330420013.42773396
2010	374500000
2011	366529998.779297
2012	355929992.675781
2013	270029998.779297
2014	276619995.11718804
2015	350850006.10351604
2016	189820007.32421902
2017	185070007.32421902
2018	365630004.88281304
2019	29399999.6185303
2020	326519989.013672
2021	633419982.910156
2022	338769989.013672