Frequencies for first 10,000 rows of stresfip variable in natl1998 dataset :

   State of |
  Residence |
     (FIPS) |      Freq.     Percent        Cum.
------------+-----------------------------------
         01 |      9,859       98.59       98.59
         06 |          2        0.02       98.61
         12 |         30        0.30       98.91
         13 |         16        0.16       99.07
         18 |          1        0.01       99.08
         28 |         53        0.53       99.61
         37 |          1        0.01       99.62
         39 |          2        0.02       99.64
         47 |         34        0.34       99.98
         51 |          1        0.01       99.99
         53 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015