Frequencies for first 10,000 rows of rgn_cd variable in posclia2012 dataset :

Region Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        367        3.67        3.67
         10 |        274        2.74        6.41
          2 |        638        6.38       12.79
          3 |        735        7.35       20.14
          4 |      1,953       19.53       39.67
          5 |      1,375       13.75       53.42
          6 |      1,224       12.24       65.66
          7 |        416        4.16       69.82
          8 |        292        2.92       72.74
          9 |      2,726       27.26      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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