Year	current US$
1991	111500000
1992	9540000.047534704
1993	13150000.05811453
1994	43249999.83049933
1995	45929999.63462353
1996	110800000.78305607
1997	106520000.02376738
1998	187739998.08728686
1999	148729997.82860282
2000	165400001.67675316
2001	128089998.70717527
2002	160520000.60863793
2003	237330006.43551356
2004	216639993.16468835
2005	160030000.14647838
2006	113390001.6322732
2007	195460005.09150326
2008	250450008.5730109
2009	190349999.10928312
2010	118259995.66167587
2011	39650000.17918652
2012	47709998.42509627
2013	24929999.139159992
2014	31199999.50751668
2015	22710000.094026323
2016	14329997.546970792
2017	19720000.300556406
2018	11940001.31636859
2019	6599998.911842672
2020	11419998.710975096
2021	7639998.655766329
2022	26449999.98249116