Frequencies for first 10,000 rows of prov1725 variable in pos2002 dataset :

region code |      Freq.     Percent        Cum.
------------+-----------------------------------
         04 |      1,607       16.07       16.07
         06 |      1,696       16.96       33.03
         09 |      6,485       64.85       97.88
         10 |        212        2.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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