O.K. Here's a good one. I had a guy ask me the other day how many Walk Behind Commercial mowers were sold in the U.S. each year. Well, I didn't have a good idea and I still don't. He said he had a report (I think he said it was OPEI) that stated there were 48,000 sold. That seems WAY TOO LOW to me but I didn't really have a clue what the number would be. So the question is; How many Walk Behind Commercial belt drive and hydro walk behind mowers are sold in the U.S. every year? . That would be all sizes 32"-72". Does anyone have a guess or something to back up a number?