I sure did not realize that!
I would think that random statistics would be hard to utilize to gauge the harvest of feral hogs. The fact that most people do not have access to property with hogs combined with the fact that there is a small minority of people who actually target them means that there is a solid chance that the data could be easily skewed by some individuals. For instance, if you and I were included....and our numbers extrapolated as 'normal'.....the estimated kill would show a marked increase. Fact is, a small minority of hunters kill a huge majority of the hogs.
But, anything is better than nothing, I suppose!