Replying to torn ACL?

I'm doing a research project about the incidence of ACL injuries in skiing. I would really appreciate your help. If you have ever torn your ACL, please answer these questions:

1-when was the injury? what was your age then? and are you male or female? did you fall skiing? landing or just a weird fall?
2-if you had surgery, how long after the injury?
3-what did they use for your new ACL? (hamstring, patellar tendon, or cadaver graft)
4-how until you skied again?
5-do you have any trouble with your knee now?
thanks a lot, I REALLY appreciate it, and if anyone else you know has torn theirs please get them to fill this out for me.