I Recently Had A Stroke And The Doctors Have Put

I recently had a stroke and the doctors have put me on a statin and baby aspirin daily. I had no history of high blood pressure, high cholesterol, heart disease, no smoking, no drinking or drug use. I am told I'll have to stay on the statin to lower my risk of another stroke. Can you tell me how many people that have had strokes get them again if they don't have a lot of the risk factors?
Thank you. Pat Debo