Frequencies for first 10,000 rows of prov5540 variable in pos1999 dataset :

  number of |
   patients |
   tue. 4th |
      shift |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,985       99.85       99.85
          1 |          2        0.02       99.87
          2 |          1        0.01       99.88
          3 |          1        0.01       99.89
          5 |          2        0.02       99.91
          8 |          2        0.02       99.93
         10 |          2        0.02       99.95
         11 |          1        0.01       99.96
         13 |          2        0.02       99.98
         15 |          1        0.01       99.99
         26 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016