Frequencies for first 10,000 rows of state_rgn_cd variable in pos2017 dataset :

      State |
Region Code |      Freq.     Percent        Cum.
------------+-----------------------------------
        001 |      4,622       46.22       46.22
         AZ |      1,744       17.44       63.66
        BAK |         93        0.93       64.59
        BER |        163        1.63       66.22
         BK |        234        2.34       68.56
        BK1 |          7        0.07       68.63
         FR |        257        2.57       71.20
         L1 |        241        2.41       73.61
         L2 |        227        2.27       75.88
         L3 |         44        0.44       76.32
         L4 |        216        2.16       78.48
         L5 |        173        1.73       80.21
        LAB |          1        0.01       80.22
         M2 |          1        0.01       80.23
        ORG |        178        1.78       82.01
        RIV |        121        1.21       83.22
        RWC |        176        1.76       84.98
         S1 |        254        2.54       87.52
         S2 |          5        0.05       87.57
         S3 |        187        1.87       89.44
         SA |         24        0.24       89.68
         SB |         20        0.20       89.88
         SD |        210        2.10       91.98
        SDS |         78        0.78       92.76
         SF |        142        1.42       94.18
         SJ |        181        1.81       95.99
         SR |         64        0.64       96.63
        TUC |        176        1.76       98.39
        VEN |        161        1.61      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 9 Jan 2018