Year	current US$
1990	4729999.965056778
1991	5989999.940618873
1992	5320000.112056734
1993	6669999.904930601
1994	8580000.009387733
1995	14690000.280737882
1996	14710000.00089407
1997	17970000.151544806
1998	18560000.214725733
1999	20530000.10550021
2000	27799999.87781048
2001	22610000.193119053
2002	31270000.198856004
2003	36560000.89272857
2004	50349999.71836801
2005	62379999.585449606
2006	68569999.56071374
2007	82630000.15914452
2008	92849999.77052224
2009	88909998.81923199
2010	83530000.63821681
2011	83449999.45908782
2012	86570000.29087062
2013	99339998.81520866
2014	110490000.55529162
2015	102390000.14774498
2016	98880000.9042024
2017	106929999.4930624
2018	131709997.54965305
2019	139429997.4944443