Not that many actually. A few years ago we had 3 people get nailed within a few weeks time in 3 different areas (one basically just around the corner from my house.). That was a total fluke.Other than that human fatalities are quite rare. Lightning is a much worse killer here. Not so sure on pets they do occasionally get eaten but it's not really on my radar so I don't know about the numbers. There is a saying here in Fl. I won't completely repeat here involving gators dogs and marshmallows among other things. The gist of it is you want to keep your dogs away from the water.