Frequencies for first 10,000 rows of pct001003 variable in sf12000860us12 dataset :

     Apache |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,755       87.55       87.55
          1 |        788        7.88       95.43
          2 |        222        2.22       97.65
          3 |        114        1.14       98.79
          4 |         58        0.58       99.37
          5 |         30        0.30       99.67
          6 |         17        0.17       99.84
          7 |          8        0.08       99.92
          8 |          2        0.02       99.94
          9 |          4        0.04       99.98
         10 |          1        0.01       99.99
         14 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2017