It is a very limited list. It is highly unlikely more people Horse back ride then swim yet swimming is not on the list. It also doesn't take into account how many times a year they only require once a year for it to get a vote. In other words, someone who likes weight lifting may work out 250 times a year while the person who does tent camping may camp 10 times a year. To a marketer this would be have significant meaning. In fact, I would not call someone who plays pool once a year a pool player or even remotely a perspective customer for any kind of billiard industry product.
That is a pretty weird poll they did there, I wonder what they were trying to find?
I don't believe that horseback riding stat in the slightest, more people rode horseback within the last year then jogged? Yeah bloody right... The whole list is worth ignoring due to that oh so clearly wrong claim.