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

 fips state |
       code |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         13        0.13        0.13
         01 |      1,388       13.88       14.01
         02 |        182        1.82       15.83
         04 |      1,036       10.36       26.19
         05 |      1,469       14.69       40.88
         06 |      5,493       54.93       95.81
         08 |        419        4.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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