Year	current US$
1975	345257.868423461
1976	1172592.59260178
1977	2230370.37039185
1978	1925185.18519592
1979	9835555.55563354
1980	5078148.14819336
1981	3056990.47980608
1982	4329400.53089847
1983	1478782.39063894
1984	5249802.09569767
1985	3270984.1827768
1986	9593021.29585459
1987	18427249.3580559
1988	14063589.6435252
1989	11683674.1398796
1990	14462984.5926221
1991	17768608.6197771
1992	20410000.4125015
1993	19915109.143162
1994	15414832.0518304
1995	22123442.2827651
1996	22894379.5511279
1997	23892440.0932602
1998	27665292.7100852
1999	31574051.1669785
2000	29372786.7374406
2001	31224517.7425111
2002	45497423.6565735
2003	47735245.631936
2004	42321834.5559941
2005	49172196.72641
2006	63047100.2578612
2007	60522068.624978
2008	55150083.3599292
2009	75464032.6940291
2010	76099741.2908616
2011	81120934.2699267
2012	94562315.3820093
2013	87050886.0260666
2014	101447737.686139
2015	126225919.300594
2016	221907763.515912
2017	212292574.606832
2018	191323608.30539
2019	155172395.260191
2020	165824163.308941
2021	190843317.142588
2022	204343039.949668
2023	183530007.089389