Year	current US$
1990	10784663.1016524
1991	12168790.8336615
1992	12860103.4751741
1993	14022023.5004614
1994	17718859.8301519
1995	20943383.4784943
1996	20851666.0865822
1997	23509662.6697254
1998	27904214.2923842
1999	29644182.5373928
2000	30626658.5756885
2001	32409424.3293567
2002	22571093.4600511
2003	32569967.4616633
2004	36403018.6619472
2005	39785281.9472834
2006	40219013.3326969
2007	44295587.5237198
2008	47771175.8617737
2009	46673537.6842963
2010	53441313.7873243
2011	65324169.3806134
2012	85131933.296642
2013	94713383.284183
2014	101348978.119218
2015	114054845.172961
2016	114198745.018846
2017	129837313.158693
2018	131248794.168125
2019	168009148.930733
2020	167902267.399666
2021	194583801.926984