Lucky Number

I was at the gym the other day having a fitness test on a treadmill. The treadmill does a 5 minute test and reports back a VO2 Max number. My VO2 Max was 39 which is average (for a person of my age). I asked the trainer what the range was for the number and he replied from 20 to Lance Amstrong. He then added that it is widely reported that Lance Armstrongs number is 80 and that is the highest VOX recorded. Might be BS, but i'm sure his is a hell of a lot higher than mine.