Cause Category	Count	Mean Duration (min)	Median Duration (min)
fuel supply emergency	38	13484.03	3960.00
severe weather	741	3899.71	2464.00
equipment failure	54	1850.56	224.00
public appeal	69	1468.45	455.00
system operability disruption	120	747.09	222.00
intentional attack	332	521.93	92.50
islanding	44	200.55	77.50