Frequencies for first 10,000 rows of cntyrfip variable in natlterr1999 dataset :

  County of |
  Residence |
     (FIPS) |      Freq.     Percent        Cum.
------------+-----------------------------------
      00000 |          3        0.03        0.03
      12000 |          2        0.02        0.05
      19000 |          1        0.01        0.06
      34000 |          1        0.01        0.07
      36000 |          1        0.01        0.08
      42000 |          1        0.01        0.09
      48000 |          1        0.01        0.10
      51000 |          1        0.01        0.11
      72021 |        586        5.86        5.97
      72025 |        379        3.79        9.76
      72031 |        453        4.53       14.29
      72097 |        211        2.11       16.40
      72113 |        499        4.99       21.39
      72127 |      1,070       10.70       32.09
      72999 |      6,790       67.90       99.99
      78999 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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