Frequencies for first 10,000 rows of state_rgn_cd variable in pos2016 dataset :

      State |
Region Code |      Freq.     Percent        Cum.
------------+-----------------------------------
        001 |      4,549       45.49       45.49
         AZ |      1,513       15.13       60.62
        BAK |         95        0.95       61.57
        BER |        164        1.64       63.21
         BK |        250        2.50       65.71
        BK1 |          7        0.07       65.78
         FR |        258        2.58       68.36
         L1 |        281        2.81       71.17
         L2 |        215        2.15       73.32
         L3 |         44        0.44       73.76
         L4 |        221        2.21       75.97
         L5 |        182        1.82       77.79
         M2 |          1        0.01       77.80
        ORG |        192        1.92       79.72
        RIV |        124        1.24       80.96
        RWC |        183        1.83       82.79
         S1 |        265        2.65       85.44
         S2 |          6        0.06       85.50
         S3 |        193        1.93       87.43
         SA |         24        0.24       87.67
         SB |         22        0.22       87.89
         SD |        217        2.17       90.06
        SDS |         80        0.80       90.86
         SF |        166        1.66       92.52
         SJ |        176        1.76       94.28
         SR |         68        0.68       94.96
        TUC |        334        3.34       98.30
        VEN |        170        1.70      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 10 Jan 2017