Frequencies for first 10,000 rows of opnum variable in h170 dataset :

          # |
 OUTPATIENT |
     EVENTS |
  ASSOC. W/ |
  CONDITION |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,495       94.95       94.95
          1 |        341        3.41       98.36
          2 |         74        0.74       99.10
          3 |         30        0.30       99.40
          4 |         15        0.15       99.55
          5 |          6        0.06       99.61
          6 |          6        0.06       99.67
          7 |          6        0.06       99.73
          8 |          5        0.05       99.78
          9 |          1        0.01       99.79
         10 |          2        0.02       99.81
         11 |          5        0.05       99.86
         12 |          1        0.01       99.87
         13 |          1        0.01       99.88
         14 |          2        0.02       99.90
         15 |          1        0.01       99.91
         16 |          1        0.01       99.92
         17 |          1        0.01       99.93
         18 |          2        0.02       99.95
         20 |          1        0.01       99.96
         21 |          1        0.01       99.97
         46 |          1        0.01       99.98
         48 |          1        0.01       99.99
         63 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 14 Jul 2017