Frequencies for first 10,000 rows of fipstate variable in pos1991 dataset :

 fips state |
       code |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         15        0.15        0.15
         01 |      1,235       12.35       12.50
         02 |        145        1.45       13.95
         04 |        860        8.60       22.55
         05 |      1,215       12.15       34.70
         06 |      5,709       57.09       91.79
         08 |        821        8.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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