Frequencies for first 10,000 rows of st variable in cowbo19ages dataset :

      State |
     Postal |
Abbreviatio |
          n |      Freq.     Percent        Cum.
------------+-----------------------------------
         CO |     10,000      100.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 2 May 2017