To find out how many classes you did at a studio do the following:

1. Log in to the studio Mind Body Portal by navigating to https://clients.mindbodyonline.com/ASP/su1.asp?studioid=47475
2. Visit your visit history by navigating to https://clients.mindbodyonline.com/ASP/my_vh.asp
3. Open the console in your web browser. You can do that in Chrome on Windows by pressing Ctrl + Shift + J simultaneously (or Cmd + Opt + J for macs). For Firefox the keyboard shortcuts are Ctrl + Shift + K and Cmd + Opt + K respectively.
4. Copy and paste the following code, it counts all the table rows for classes this year.

Array.apply(null, Array($('.myInfoTable tr').length)).map(function (_, i) {return i;}).reduce(function(p, c) { return /2016/.test($((".myInfoTable tr:nth-child(" + c + ")")).text()) ? p + 1 : p }, 0);