Frequencies for first 10,000 rows of pct0200004 variable in sf12010880us18 dataset :

    Federal |
  detention |
    centers |
      (101) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,989       99.89       99.89
         12 |          1        0.01       99.90
         33 |          1        0.01       99.91
        148 |          1        0.01       99.92
        231 |          1        0.01       99.93
        234 |          1        0.01       99.94
        350 |          1        0.01       99.95
        612 |          1        0.01       99.96
        850 |          1        0.01       99.97
        998 |          1        0.01       99.98
       1583 |          1        0.01       99.99
       2089 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 May 2017