Frequencies for first 10,000 rows of prov1725 variable in pos1998 dataset :

region code |      Freq.     Percent        Cum.
------------+-----------------------------------
         04 |      1,435       14.35       14.35
         06 |      1,527       15.27       29.62
         08 |        136        1.36       30.98
         09 |      6,706       67.06       98.04
         10 |        196        1.96      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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