Let's just assume I'm right and that I see 2 fare jumpers per day. That's 10 a week, or about 520 per year. That's more than a sixth of the quoted number that one person is witnessing at one station in a small window of time. Admittedly, I'm primarily travelling during rush hour when there are more people travelling, and probably more fare jumps are happening during that time, but I just don't see any possible way the quoted number is close to accurate. It wouldn't shock me at all if the real number was 100x higher.