Frequencies for first 10,000 rows of prov3230 variable in pos1997 dataset :

      state |
abbreviatio |
          n |      Freq.     Percent        Cum.
------------+-----------------------------------
         AK |        195        1.95        1.95
         AL |      1,388       13.88       15.83
         AR |      1,469       14.69       30.52
         AZ |      1,036       10.36       40.88
         CA |      5,493       54.93       95.81
         CO |        419        4.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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