Year	% of revenue
1990	0.9235395189003437
1991	0.5370265686828717
1992	0.7744241461477364
1993	0.6834532374100719
1994	0.6813627254509018
1995	0.7660833986245321
2003	4.865753679354363
2004	4.031776463818166
2005	4.504183727968666
2006	3.747487882728455
2007	6.730319811749845
2008	0.7562648208677818
2009	0.31642318007909226
2010	0.13815662508838505
2011	0.1378732622326124
2012	0.11991950543020514
2013	0.19831864817873254
2014	0.07711454987276246
2015	0.06798142319575307
2016	0.27889996416707363
2017	0.2597096554107367
2018	0.3204008677320596
2019	0.3302718647007098
2020	0.07880780365138865
2021	0.03279412157219504
2022	0.11568759992023228