How many people get hurt or killed from faulty seatbelts or not wearing a seatbelt?

I have seen many people die from not wearing their seatbelts. I do not know the percentage though, but people do die from not wearing their seatbelts. I was driving home one night, and I witnissed a double collision car accident. Someone flew out of their window while the car was flipping and hit the highway. There were 3 other people in the same car as the man who flew out. He was the only one who wasn't wearing his seatbelt. The other 3 people climbed out of the car with minor injuries. The one who wasn't wearing his seatbelt died later that night. So to answer your question, yes. People die from not wearing their seatbelts almost everyday.