Honestly, the only two things that surprise me about this list are that Armonía is on it, and that CE isn't. They're actually down at a ratio of 1.15—though I do wonder, if I analyzed those 15% of its players who have 2 characters in the realm, how many of them would be old-timers.
CE probably isn't on it because there are so many characters in the realm overall (70+). The sheer number of them dilutes the ratio. Armonia's problem is likely the opposite: A few players with two characters in a realm that doesn't have that many characters to begin with (ditto for OI). Do you happen to have statistics for the absolute number of players with two characters in each realm? I'd be curious to see those stats as well.
