Frequencies for first 10,000 rows of prov2710 variable in posclia2006 dataset :

      state |
region code |      Freq.     Percent        Cum.
------------+-----------------------------------
        001 |      2,445       24.45       24.45
         AZ |      1,634       16.34       40.79
        LAB |      5,920       59.20       99.99
         M2 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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