Frequencies for first 10,000 rows of endscpy_prcdr_rooms_cnt variable in pos2016 dataset :

  Endoscopy |
  Procedure |
 Room Count |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,248       12.48       12.48
          1 |        138        1.38       13.86
          2 |         54        0.54       14.40
          3 |         25        0.25       14.65
          4 |         17        0.17       14.82
          5 |         13        0.13       14.95
          6 |          7        0.07       15.02
          7 |          4        0.04       15.06
          8 |          4        0.04       15.10
         10 |          2        0.02       15.12
         12 |          1        0.01       15.13
         13 |          1        0.01       15.14
         14 |          1        0.01       15.15
         16 |          1        0.01       15.16
         18 |          1        0.01       15.17
         33 |          1        0.01       15.18
         34 |          1        0.01       15.19
         36 |          1        0.01       15.20
          . |      8,480       84.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 10 Jan 2017