The Black Seats

So I just saw the Yankees-Indians highlights on ESPNews, and the Todd Holladsworth bomb to center field surprised me for two reasons. First of all, Todd Hollandsworth??? So that's where he's been. Second of all, the ESPN guy said it was the 21st time someone had hit a home run into the black seats in center field in Yankee Stadium. That surprised me. Maybe they've only been keeping track since a past renovation, but I thought that total would have been a lot higher, even taking into account players who have done it twice. Ross, any information on this?