Frequencies for first 10,000 rows of prov3230 variable in pos1996 dataset :

      state |
abbreviatio |
          n |      Freq.     Percent        Cum.
------------+-----------------------------------
         AK |        183        1.83        1.83
         AL |      1,328       13.28       15.11
         AR |      1,423       14.23       29.34
         AZ |        978        9.78       39.12
         CA |      5,290       52.90       92.02
         CO |        798        7.98      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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