I don't believe by default there is any tracking on that table. You'd need to implement some type of auditing solution in order to get that. There is Activity Tracking built in to GP but it needs to be activated first and I believe that will only tell you that someone changed something but not what.
There's a couple of 3rd parties that have good auditing capabilities. Both Fastpath and Rockton have been around awhile and are used by alot of companies. Merit Solutions' Audit Trails used to be built in to GP but I think it was starting in GP 2013 Microsoft gave it back to Merit to support.