Frequencies for first 10,000 rows of placefip variable in natl1997 dataset :

      Place |
  (City) of |
  Resdience |
     (FIPS) |      Freq.     Percent        Cum.
------------+-----------------------------------
      00000 |          3        0.03        0.03
      07000 |        706        7.06        7.09
      29000 |          1        0.01        7.10
      37000 |        371        3.71       10.81
      44000 |          1        0.01       10.82
      50000 |        552        5.52       16.34
      51000 |        549        5.49       21.83
      55000 |          1        0.01       21.84
      69000 |          1        0.01       21.85
      99999 |      7,815       78.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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