Frequencies for first 10,000 rows of state_rgn_cd variable in pos2014 dataset :

      State |
Region Code |      Freq.     Percent        Cum.
------------+-----------------------------------
        001 |      4,480       44.80       44.80
         AZ |      1,414       14.14       58.94
        BAK |         97        0.97       59.91
        BER |        169        1.69       61.60
         BK |        253        2.53       64.13
        BK1 |          8        0.08       64.21
         FR |        262        2.62       66.83
         L1 |        297        2.97       69.80
         L2 |        228        2.28       72.08
         L3 |         54        0.54       72.62
         L4 |        228        2.28       74.90
         L5 |        201        2.01       76.91
         M2 |          1        0.01       76.92
        ORG |        200        2.00       78.92
        RIV |        129        1.29       80.21
        RWC |        186        1.86       82.07
         S1 |        283        2.83       84.90
         S2 |         10        0.10       85.00
         S3 |        201        2.01       87.01
         SA |         28        0.28       87.29
         SB |         26        0.26       87.55
         SD |        234        2.34       89.89
        SDS |         79        0.79       90.68
         SF |        177        1.77       92.45
         SJ |        187        1.87       94.32
         SR |         69        0.69       95.01
        TUC |        327        3.27       98.28
        VEN |        172        1.72      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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