Frequencies for first 10,000 rows of state_cd variable in pos1994 dataset :

      state |
abbreviatio |
          n |      Freq.     Percent        Cum.
------------+-----------------------------------
         AK |        184        1.84        1.84
         AL |      1,517       15.17       17.01
         AR |      1,446       14.46       31.47
         AZ |      1,105       11.05       42.52
         CA |      5,748       57.48      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017