Summary statistics for places1990 dataset : by Jean Roth , jroth@nber.org , 30 Mar 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- fipsst | 0 fipsplace | 0 placefips | 0 placename | 0 stabbr | 0 -------------+--------------------------------------------------------- totpop | 23,787 7777.218 64751.27 0 7322564 housunits | 23,787 3191.72 26453.11 0 2992169 landarea | 23,787 13795.24 84892.22 5 7463030 waterarea | 23,787 1392.451 36423.26 0 5097345 latitude | 23,787 38.61841 6.66388 -14.40307 71.26826 -------------+--------------------------------------------------------- longitude | 23,787 -91.40861 19.21953 -176.6403 178.8774 by Jean Roth , jroth@nber.org , 30 Mar 2016