Year	current US$
1991	187029998.779297
1992	272739990.234375
1993	186009994.506836
1994	119019996.64306599
1995	222720001.220703
1996	76569999.6948242
1997	56529998.779296905
1998	40450000.762939505
1999	39720001.220703095
2000	35959999.0844727
2001	40549999.237060495
2002	39450000.762939505
2003	45979999.5422363
2004	49939998.626709
2005	58009998.3215332
2006	74760002.1362305
2007	85430000.3051758
2008	111139999.38964799
2009	98220001.2207031
2010	136259994.506836
2011	119800003.05175799
2012	102870002.746582
2013	107139999.38964799
2014	120610000.61035201
2015	104580001.831055
2016	-22309999.4659424
2017	-250169998.168945
2018	119169998.168945
2019	211910003.66210902
2020	325859985.35156304
2021	139710006.71386698
2022	16309999.465942401