80 hours is the national average for a private pilot certificate. Mind you that takes everyone into account.
Things tend to rack those hours up are students who fly seldom (less than twice a week). Areas where weather slows down the progress etc. Students that apply themselves to the training, are available for at least 3 days a week (more is better up to a point), and have favorable weather conditions will likely fall in the 50-60 hour range. Remember that the minimums by the FAA is 40 hours, that means nothing unless you are ready for the check ride.
Also, don't get bent out of shape for not being able to solo yet. While I'm sure it would have been nice to have that accomplishment already, it is not the end all and be all. Traditionally the solo is accomplished in about the first third of training, there are plenty of other things you can work on until then.