See. It's all over the board. There is no relevant average. All depends on the individual. Some enjoy making a tour a race. Most take a more leisurely pace. A few just amble along, no time constraint. It's all good.
I run about 50/day on a df, day off every 6/7, or when my body/mind tell me I need one. As I've switched to a bent, daily mileage will likely increase. No comfort issues.