Year	current US$
1980	25299999.24
1981	29399999.62
1982	23600000.38
1983	19899999.62
1984	25700000.76
1985	25000000
1986	23000000
1987	25000000
1988	25299999.24
1989	27500000
1990	25399999.62
1991	29600000.38
1992	26600000.38
1993	21299999.24
1994	19399999.62
1995	20600000.38
1996	15699999.81
1997	22899999.62
1998	31100000.38
1999	139800003.1
2000	156199996.9
2001	64189277.65
2002	49908393.86
2003	29506679.53
2004	20255369.19
2005	24484791.324
2006	26098008.42
2007	45250476.6075
2008	56837736.4293
2009	65747044.0916403
2010	53681013.2111664
2011	41487242.7024165
2012	96201741.8627877
2013	99836837.3132151
2014	193870444.797225
2015	190566935.106611
2016	98477390.9082009
2017	219143648.085331
2018	209479738.37071
2019	202255973.936507
2020	211095590.992523
2021	221102203.208402
2022	193370914.149138
2023	208854522.437399