Year	current US$
1989	24050000.1907349
1990	28779999.7329712
1991	28089999.1989135
1992	30059999.732300647
1993	29390000.114217483
1994	100390002.51702964
1995	27380000.427365303
1996	45779999.50386578
1997	28609998.96936115
1998	34000000.38743017
1999	34780000.267550334
2000	38379999.421536915
2001	37010000.79698858
2002	20820000.305771876
2003	53769999.52271578
2004	43220000.57063998
2005	59970001.054927774
2006	62729999.47331837
2007	62480001.12921008
2008	83210000.43302777
2009	69170001.46582721
2010	159140005.1675742
2011	161149995.7963823
2012	178380002.67744038
2013	167830004.85040298
2014	148950004.72292355
2015	64439999.77223569
2016	44600001.199170895
2017	35900000.814348534
2018	33819999.59796669
2019	41869999.00452791