Frequencies for first 10,000 rows of shift_4_tue_ptnt_cnt variable in pos2005 dataset :

  number of |
   patients |
   tue. 4th |
      shift |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,960       99.60       99.60
          1 |          2        0.02       99.62
          4 |          2        0.02       99.64
          5 |          4        0.04       99.68
          6 |          5        0.05       99.73
          7 |          3        0.03       99.76
          8 |          2        0.02       99.78
          9 |          3        0.03       99.81
         10 |          3        0.03       99.84
         11 |          2        0.02       99.86
         12 |          3        0.03       99.89
         13 |          3        0.03       99.92
         16 |          1        0.01       99.93
         17 |          1        0.01       99.94
         18 |          4        0.04       99.98
         24 |          1        0.01       99.99
         25 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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