Frequencies for first 10,000 rows of ssa_state_cd variable in pos1993 dataset :

 state code |
      (ssa) |      Freq.     Percent        Cum.
------------+-----------------------------------
         01 |      1,370       13.70       13.70
         02 |        155        1.55       15.25
         03 |      1,047       10.47       25.72
         04 |      1,349       13.49       39.21
         05 |      5,887       58.87       98.08
         06 |        192        1.92      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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