That’s a tough question to answer, especially if you want the data to be accurate. Also, many people who might have one considered themselves personal trainers may not anymore if they’ve incorporated things such as wellness/life coaching, nutritional coaching, mind/body practices, etc. into the services they offer clients.
Where would you draw the line of personal trainer vs. more than that?
Here’s a link to a recent question here on IDEA that might be useful to you: