There is no set answer to this. It varies hugely from person to person. Are you asking so you can plan a cheat or because you have blipped? If it's the first, then it kind of doesn't work like that. There are no ok cheats. You need to think about whether it's worth it or not. And why you fee that you have to. If it's the second, then I wouldn't worry about it. What's done is done. Just get straight back on the wagon and you'l be fine! Or if you were just asking, then ignore me!!!