Frequencies for first 10,000 rows of fipstate variable in posclia1998 dataset :

   fipstate |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         61        0.61        0.61
         01 |      3,785       37.85       38.46
         02 |        404        4.04       42.50
         04 |      3,542       35.42       77.92
         05 |      2,188       21.88       99.80
         06 |          1        0.01       99.81
         08 |          1        0.01       99.82
         12 |          1        0.01       99.83
         13 |          2        0.02       99.85
         17 |          2        0.02       99.87
         18 |          1        0.01       99.88
         28 |          2        0.02       99.90
         34 |          1        0.01       99.91
         39 |          1        0.01       99.92
         40 |          1        0.01       99.93
         48 |          4        0.04       99.97
         49 |          1        0.01       99.98
         53 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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