Year	% of revenue
1992	9.152542372881356
1993	8.251001335113486
1994	8.145528044466904
1995	10.896162751143933
1996	10.991543784348574
1997	6.706896286009305
1998	3.0521479972266548
1999	2.754375232709839
2000	2.7903106367710264
2001	3.1601527114044825
2002	3.165900908278523
2003	10.425753755592607
2004	9.50652745130955
2005	10.426155573837875
2006	8.126488912420065
2007	4.789796819061731
2008	6.980659016640237
2009	3.401649372774554
2010	3.4998499970390804
2011	1.9275509896385434
2012	2.029567492108209
2013	0.5445451525156253
2014	0.44301360009780755
2015	0.3572352368741787
2016	0.4526285628483771
2017	0.3738441192991111
2018	0.3270429305347472
2019	0.3047959850161669
2020	0.3164213507474176
2021	0.41544812522811064
2022	0.5140639120059558