Frequencies for first 10,000 rows of pct020a005 variable in sf12010860us37 dataset :

    Federal |
    prisons |
      (102) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,971       99.71       99.71
        278 |          1        0.01       99.72
        300 |          1        0.01       99.73
        326 |          1        0.01       99.74
        372 |          1        0.01       99.75
        375 |          1        0.01       99.76
        399 |          1        0.01       99.77
        408 |          1        0.01       99.78
        412 |          1        0.01       99.79
        427 |          1        0.01       99.80
        522 |          1        0.01       99.81
        531 |          1        0.01       99.82
        591 |          1        0.01       99.83
        599 |          1        0.01       99.84
        613 |          1        0.01       99.85
        626 |          1        0.01       99.86
        637 |          1        0.01       99.87
        638 |          1        0.01       99.88
        641 |          1        0.01       99.89
        647 |          1        0.01       99.90
        680 |          1        0.01       99.91
        690 |          1        0.01       99.92
        746 |          1        0.01       99.93
        776 |          1        0.01       99.94
        948 |          1        0.01       99.95
       1056 |          1        0.01       99.96
       1135 |          1        0.01       99.97
       1794 |          1        0.01       99.98
       1948 |          1        0.01       99.99
       2171 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 Apr 2017