How unusual was the ending of Monday's Game 6?

Check out this post on the new version of Rink Stats.

As a follow up to yesterday's post on the latest Cup-winning goals in history, today I'm going to look at little more at the craziness of the end of Monday's game. Earlier today I was thinking about how often it is that a team comes from behind to tie and win the game at the end of regulation, like the Blackhawks did a couple nights ago. My inclination was that it can't possibly be a common thing. So with my six seasons worth of regular season play-by-play data I explored the question. Here's what I found: