Year	% of revenue
1994	0.493853918320587
1995	0.29863791973195425
1996	0.6415054853950852
1997	1.0002111422797333
1998	0.815430802564374
1999	1.1953679491968623
2000	0.9590649446591824
2001	1.060556392675825
2002	0.03759046241410213
2003	3.558215734952714E-05
2006	2.3297121204744884
2007	20.16830298076915
2008	0.5073758675244247
2009	0.4617683299298471
2010	1.6069890991663343
2011	1.3549984748367132
2012	1.239341448757357
2013	0.29491197678702835
2014	0.17155435861880836
2015	0.11049592064294374
2016	0.33041654593472947
2017	0.36413873740724073
2018	1.0665046235514402
2019	0.7528602311369325
2020	0.7040720497603655
2021	0.2995591976932228