Year	current US$
1985	195967.2272
1986	219164.8483
1987	249793.9914
1988	2235107.66
1989	2722237.11
1990	3052144.04099541
1991	3092153.25133803
1992	4318194.87290384
1993	2931554.14772898
1994	3558133.23709981
1995	4115785.09375573
1996	5860676.92578455
1997	3106231.1517866
1998	2934504.4060255
1999	3119656.7581058
2000	4667156.219
2001	6214655.876
2002	7762155.533
2003	9309655.19
2004	10857154.7249009
2005	15535586.7299641
2006	20918751.4044585
2007	10205979.0137889
2008	8592645.19822753
2009	8453372.80617743
2010	8947643.19451591
2011	12405220.0086202
2012	11039604.5741214
2013	18219957.6329183
2014	12467914.7927473
2015	15747451.0949146
2016	17712737.9459102
2017	18966688.9975957
2018	17312561.1108665
2019	19773166.0639656
2020	21124520.6539397
2021	25873304.3769797
2022	27028757.5144267
2023	32489235.5762779