Frequencies for first 10,000 rows of rgn_cd variable in posclia2011 dataset :

Region Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        375        3.75        3.75
         10 |        262        2.62        6.37
          2 |        679        6.79       13.16
          3 |        759        7.59       20.75
          4 |      1,953       19.53       40.28
          5 |      1,319       13.19       53.47
          6 |      1,246       12.46       65.93
          7 |        408        4.08       70.01
          8 |        276        2.76       72.77
          9 |      2,723       27.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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