Frequencies for first 10,000 rows of cntyrfip variable in natl1996 dataset :

  County of |
  Residence |
     (FIPS) |      Freq.     Percent        Cum.
------------+-----------------------------------
      01015 |        295        2.95        2.95
      01073 |      1,562       15.62       18.57
      01089 |        703        7.03       25.60
      01097 |      1,000       10.00       35.60
      01101 |        627        6.27       41.87
      01103 |        197        1.97       43.84
      01125 |        300        3.00       46.84
      01999 |      5,144       51.44       98.28
      06037 |          2        0.02       98.30
      12005 |          1        0.01       98.31
      12025 |          1        0.01       98.32
      12031 |          1        0.01       98.33
      12033 |          2        0.02       98.35
      12091 |          2        0.02       98.37
      12999 |         20        0.20       98.57
      13089 |          2        0.02       98.59
      13215 |          2        0.02       98.61
      13245 |          1        0.01       98.62
      13999 |         17        0.17       98.79
      17031 |          1        0.01       98.80
      17043 |          1        0.01       98.81
      22103 |          1        0.01       98.82
      26163 |          2        0.02       98.84
      28047 |          6        0.06       98.90
      28059 |         32        0.32       99.22
      28999 |         29        0.29       99.51
      35999 |          1        0.01       99.52
      36103 |          1        0.01       99.53
      45085 |          1        0.01       99.54
      47037 |          1        0.01       99.55
      47125 |          1        0.01       99.56
      47157 |          1        0.01       99.57
      47999 |         42        0.42       99.99
      48027 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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