Talk:Experience/@comment-11201795-20130629162001/@comment-5832451-20130629182122

It's the "extra" rollover from whatever got you to level 30, just like it would have carried over from level 27 to 28, for example. And you can't ever change it. So unless you were really paying attention then everyone probably will have different numbers. My wife planned it so hers says "1/0".