How often do your engineering sprint cycles hit expected release timelines?

This is a sad state of affairs, in my opinion.  Though I think the responses do reflect the current state.  I still see most organization doing agile rather than being agile.  

I consider a good number for my teams to be 105%.  I have had teams that have hit this rate for years on end.  Where this isn't happening, the focus should almost always be on management rather than on the teams.