There isn't a built-in statistic for that but you could do it with a custom statistic - see
this guide for the basics on custom statistics creation and
this guide for a deeper walkthrough. While the latter was written for PokerTracker 3 and the user interface is different the techniques still apply to PokerTracker 4. There may also be some similar stats if you search the
custom statistic forum or the
Download Warehouse and you can edit them if they are not exactly what you are after.