Year	% of revenue
1995	1.4107688690336233
2002	1.0104045748810253
2003	0.8466991837211955
2004	1.1934968464816942
2005	1.6912349309226298
2006	1.8714568309428143
2007	1.6248044343985728
2008	1.550345200683397
2009	0.6959330610007026
2010	0.722736915673785
2011	0.6999076503041886
2012	0.5624124094671751
2013	0.5466451916343188
2014	0.5122804376161136
2015	0.5172157519116183
2016	0.4730125521132383
2017	0.45953493224564146
2018	0.37690604745602396
2019	0.3950443847557755
2020	0.3853001282304298
2021	0.37991868157425757
2022	0.4303518967474546