Prices for babysitting?

I'm 16, I have a lot of experience with babysitting from ages 0-14. I have babysat children with ADHD, ADD, Asthma, Asberguers Syndrome, Autism, and many other things. I was CPR certified (I need to re-update it though), I can feed, bathe, basically I'm good with doing anything (other than giving needles but I doubt that that will be needed) I'm going to hang signs and what not but I don't know how much to charge. i was thinking 5- 10 per hour. Should I do more or less. Also I live in South Jersey and I'm a Junior in High School so I'd have to do it after school. Please and thanks :)