Frequencies for first 10,000 rows of fips_state_cd variable in pos2007 dataset :

 fips state |
       code |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         15        0.15        0.15
         01 |      1,816       18.16       18.31
         02 |        237        2.37       20.68
         04 |      1,410       14.10       34.78
         05 |      1,891       18.91       53.69
         06 |      4,631       46.31      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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