Year	current US$
1991	460000.00834465
1992	13189999.5803833
1993	62130001.0681152
1994	102660003.662109
1995	73550003.0517578
1996	112690002.441406
1997	84440002.44140631
1998	73639999.3896484
1999	102879997.253418
2000	97480003.3569336
2001	135399993.89648402
2002	110730003.35693401
2003	112269996.64306599
2004	85370002.746582
2005	104819999.69482401
2006	106239997.86377
2007	111709999.084473
2008	91129997.253418
2009	120910003.662109
2010	63770000.4577637
2011	130639999.389648
2012	143259994.506836
2013	143210006.71386698
2014	117010002.13623
2015	81389999.3896484
2016	50830001.8310547
2017	98150001.5258789
2018	98790000.9155273
2019	92540000.9155273
2020	171630004.882813
2021	130759994.506836
2022	150389999.38964802
