Frequencies for first 10,000 rows of state variable in ma2015 dataset :

          State |      Freq.     Percent        Cum.
----------------+-----------------------------------
                |          2        0.02        0.02
        Alabama |        459        4.59        4.61
        Arizona |        119        1.19        5.80
       Arkansas |        696        6.96       12.76
     California |        377        3.77       16.53
       Colorado |        974        9.74       26.27
    Connecticut |        116        1.16       27.43
       Delaware |         11        0.11       27.54
        Florida |      1,049       10.49       38.03
        Georgia |      1,056       10.56       48.59
         Hawaii |         28        0.28       48.87
          Idaho |        383        3.83       52.70
       Illinois |      1,331       13.31       66.01
        Indiana |        819        8.19       74.20
           Iowa |        548        5.48       79.68
         Kansas |        516        5.16       84.84
       Kentucky |        865        8.65       93.49
      Louisiana |        482        4.82       98.31
          Maine |        169        1.69      100.00
----------------+-----------------------------------
          Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 14 Apr 2016