Which is zero in many (most?) cases, because you don't get caught. The expected number of years served is gonna be something like, say, 80% chance of 0 years,

Which is zero in many (most?) cases, because you don't get caught. The expected number of years served is gonna be something like, say, 80% chance of 0 years, or 20% chance of 10 years, averaging out to 2 years (I'm making these figures up). So if you get $2M from that, then you're averaging two years.