Year	current US$
1988	29999.999329447783
1990	19999.9995529652
1991	1589999.986812471
1992	1449999.995529651
1993	1189999.9827146523
1994	1070000.000298022
1995	1669999.9980628483
1996	1249999.9962747097
1997	1090000.0017136328
1998	309999.9986588952
1999	429999.9922513961
2000	389999.99873340136
2001	690000.0069290402
2002	2189999.938011168
2003	880000.008270144
2004	1090000.0128895035
2005	4169999.8863041378
2006	1699999.9489635238
2007	3739999.9927729326
2008	4040000.069886443
2009	2659999.9722093297
2010	3510000.05565584
2011	10299999.928101894
2012	11490000.156685708
2013	5679999.915882946
2014	6460000.002756709
2015	11610000.273212792
2016	14700000.436976552
2017	14360000.42408707
2018	10659999.907016745
2019	18500000.257045023
2020	18579999.580979314
2021	22939999.75174661
2022	22970000.421628352