Year	% of revenue
1995	1.3534520281053743
1996	1.1658634766904787
1997	0.7542872441872278
1998	0.48498178706293577
2002	0.9993555264348472
2003	2.3478227803916676
2004	1.1260081772056227
2011	0.6525483409822377
2012	0.9080137888116883
2013	0.47772996552620595
2014	0.12048807425273247
2015	0.07659673953803794
2016	0.45004331829986144
2017	0.9407939708418722
2018	0.05667283234994508
2019	0.08537077332622375
2020	0.8779145069812823
2021	0.833061148399766