Year	current US$
1993	74280678.8316834
1994	61538463.9355539
1995	58014573.0423786
1996	55589097.7286679
1997	58809330.4325048
1998	61209210.8786299
1999	56723690.0079322
2000	63275276.0259122
2001	79571429.3725491
2002	100680573.666042
2003	136869776.172268
2004	156167345.252432
2005	174959452.631579
2006	223895645.265589
2007	285353470.919324
2008	423067861.316712
2009	439815017.543859
2010	479988463.157894
2011	612626933.333333
2012	738576884.210526
2013	830155017.543859
2014	918794484.210527
2015	781970582.857144
2016	817240548.571428
2017	843373028.571428
2018	905825058.194285
2019	1010958221.76947