Year	% of revenue
1999	3.00795899183935
2000	1.848382054254086
2001	0.03630935571065478
2002	0.24181003598999004
2003	0.09514024863621266
2004	0.04027508712015933
2005	0.009192754832420548
2006	0.004226453371653177
2007	0.002581163699784453
2008	0.0009903106549267414
2009	0.0005551513573913314
2010	0.0002852295463990483
2015	-0.07630237357077932
2016	-0.29979655286443546
2017	0.0338306676483793
2018	-0.27823984597718177
2019	7.828643519194463E-05
2020	-8.719300433087652E-05
2021	2.4208435598843463E-05
2022	4.50986067507022E-06