Frequencies for first 10,000 rows of prov2710 variable in pos1998 dataset :

     states |
region code |      Freq.     Percent        Cum.
------------+-----------------------------------
            |        119        1.19        1.19
        001 |      3,255       32.55       33.74
         AZ |        889        8.89       42.63
        BER |        328        3.28       45.91
         BK |        370        3.70       49.61
         FR |        424        4.24       53.85
         L1 |        442        4.42       58.27
         L2 |        351        3.51       61.78
         L3 |         95        0.95       62.73
         L4 |        342        3.42       66.15
         L5 |        322        3.22       69.37
        ORG |        291        2.91       72.28
        RIV |        183        1.83       74.11
         S1 |        419        4.19       78.30
         S3 |        235        2.35       80.65
         SA |         70        0.70       81.35
         SB |         59        0.59       81.94
         SD |        447        4.47       86.41
         SF |        265        2.65       89.06
         SJ |        304        3.04       92.10
         SR |        313        3.13       95.23
        TUC |        151        1.51       96.74
        VEN |        326        3.26      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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