Frequencies for first 10,000 rows of prov2710 variable in pos2002 dataset :

     states |
region code |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         99        0.99        0.99
        001 |      3,487       34.87       35.86
         AZ |        977        9.77       45.63
        BAK |         79        0.79       46.42
        BER |        314        3.14       49.56
         BK |        212        2.12       51.68
        BK1 |        137        1.37       53.05
         FR |        342        3.42       56.47
         L1 |        446        4.46       60.93
         L2 |        334        3.34       64.27
         L3 |        130        1.30       65.57
         L4 |        311        3.11       68.68
         L5 |        287        2.87       71.55
        ORG |        247        2.47       74.02
        RIV |        131        1.31       75.33
        RWC |        138        1.38       76.71
         S1 |        268        2.68       79.39
         S2 |        123        1.23       80.62
         S3 |        225        2.25       82.87
         SA |         66        0.66       83.53
         SB |         54        0.54       84.07
         SD |        372        3.72       87.79
        SDS |        130        1.30       89.09
         SF |        234        2.34       91.43
         SJ |        269        2.69       94.12
         SR |        200        2.00       96.12
        TUC |        201        2.01       98.13
        VEN |        187        1.87      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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