Year	current US$
1989	19999.9995529652
1990	4380000.11444092
1991	6110000.1335144
1992	17520000.4577637
1993	10930000.3051758
1994	10960000.038146999
1995	11800000.1907349
1996	11829999.923706101
1997	13949999.8092651
1998	17020000.4577637
1999	19559999.4659424
2000	18780000.6866455
2001	24930000.3051758
2002	23190000.5340576
2003	29940000.5340576
2004	26540000.915527303
2005	28170000.0762939
2006	29729999.5422363
2007	30309999.4659424
2008	32360000.6103516
2009	25389999.3896484
2010	29069999.6948242
2011	34720001.220703095
2012	43119998.9318848
2013	32930000.305175804
2014	25340000.1525879
2015	22389999.3896484
2016	20270000.4577637
2017	8350000.38146973
2018	29729999.5422363
2019	26209999.084472697
2020	21040000.915527303
2021	18120000.8392334
2022	18659999.8474121