Frequencies for first 10,000 rows of prov1725 variable in posclia2010 dataset :

region code |      Freq.     Percent        Cum.
------------+-----------------------------------
         01 |          1        0.01        0.01
         02 |          1        0.01        0.02
         04 |      6,617       66.17       66.19
         05 |          6        0.06       66.25
         06 |         17        0.17       66.42
         07 |          2        0.02       66.44
         08 |          3        0.03       66.47
         09 |      2,510       25.10       91.57
         10 |        843        8.43      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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