Frequencies for first 10,000 rows of prov3230 variable in pos1998 dataset :

      state |
abbreviatio |
          n |      Freq.     Percent        Cum.
------------+-----------------------------------
         AK |        196        1.96        1.96
         AL |      1,435       14.35       16.31
         AR |      1,527       15.27       31.58
         AZ |      1,059       10.59       42.17
         CA |      5,647       56.47       98.64
         CO |        136        1.36      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016