NYC Health Data on Google Public Data Explorer

Nearly a year ago I wrote a post about Google's Public Data Explorer. Today I noticed (OK, it's dated March 2011, so perhaps I'm coming to it late) that some New York City data is included. There's not much, just obesity, diabetes, and vital statistics data, but it's still fun to play with. Here's a screenshot of a chart illustrating the percent of the population that's overweight or obese, by borough.

Pretty interesting, no? I wonder what accounts for the fluctuations in Staten Island.