Frequencies for first 10,000 rows of prov2710 variable in pos2006 dataset :

      state |
region code |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         77        0.77        0.77
        001 |      3,868       38.68       39.45
         AZ |      1,109       11.09       50.54
        BAK |         93        0.93       51.47
        BER |        273        2.73       54.20
         BK |        305        3.05       57.25
        BK1 |         25        0.25       57.50
         FR |        286        2.86       60.36
         L1 |        402        4.02       64.38
         L2 |        279        2.79       67.17
         L3 |        159        1.59       68.76
         L4 |        279        2.79       71.55
         L5 |        259        2.59       74.14
         M2 |          2        0.02       74.16
        ORG |        193        1.93       76.09
        RIV |        134        1.34       77.43
        RWC |        217        2.17       79.60
         S1 |        363        3.63       83.23
         S2 |         14        0.14       83.37
         S3 |        215        2.15       85.52
         SA |         47        0.47       85.99
         SB |         42        0.42       86.41
         SD |        349        3.49       89.90
        SDS |         82        0.82       90.72
         SF |        190        1.90       92.62
         SJ |        241        2.41       95.03
         SR |         85        0.85       95.88
        TUC |        252        2.52       98.40
        VEN |        160        1.60      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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