There is no "average time". And trying to rank yourself by one is only going to get you depressed about your training, which will just set you back. You'll get it when you get it. That's about as simple as I can put it. I've had pilots that were off the buddy box in 3 days (two weekends) and I've got one that is going on his second year now, still on the buddy box. Just hang in there and keep practicing, you'll get it when you get it. Don't worry about anybody else.

Ken