Year	current US$
1999	229662554.89317703
2000	174851302.18412063
2001	415916283.2043492
2002	171523975.857534
2003	550853334.7068176
2004	595122939.8527433
2005	666709575.3585988
2006	114681497.86871576
2007	467739090.83438206
2008	577372152.3043537
2009	46010017.23981158
2010	217655229.39714286
2011	-43251957.19509642
2012	654060988.2704071
2013	317061044.3712344
2014	432775347.3553496
2015	464150152.86114997
2016	235480387.7448917
2017	796019335.0029944
2018	954479036.3934592
2019	495199771.9148522
2020	1217044879.3312826
2021	1142706848.4534242
2022	2712122949.411251