Year	current US$
1995	-1522255058.50839
1996	-1427930367.74633
1997	-1307746397.36999
1998	-1237576730.94094
1999	-1444092865.89634
2000	-819958069.884065
2001	-576736182.750103
2002	-462302353.188177
2003	-373412460.832617
2004	-306737292.598948
2005	240707077.132194
2006	-749644352.602275
2007	-103813352.081356
2008	472661314.354341
2009	1776953375.59161
2010	-749044081.909227
2011	-749753028.931498
2012	-280843021.496352
2013	-809096044.929042
2014	-636048914.197567
2015	-156530757.285573
2016	-69337225.7191486
2017	306991626.042218
2018	546710613.154158
2019	350769647.258736
2020	799549389.706379
2021	102614458.07915