Frequencies for first 10,000 rows of servcnt variable in namcs2015 dataset :

      Total |
  number of |
   services |
 ordered or |
   provided |
  including |
vital signs |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        270        2.70        2.70
          1 |      1,434       14.34       17.04
          2 |      1,170       11.70       28.74
          3 |      1,354       13.54       42.28
          4 |      1,565       15.65       57.93
          5 |      1,162       11.62       69.55
          6 |        817        8.17       77.72
          7 |        569        5.69       83.41
          8 |        410        4.10       87.51
          9 |        302        3.02       90.53
         10 |        244        2.44       92.97
         11 |        159        1.59       94.56
         12 |        135        1.35       95.91
         13 |         79        0.79       96.70
         14 |         78        0.78       97.48
         15 |         60        0.60       98.08
         16 |         54        0.54       98.62
         17 |         45        0.45       99.07
         18 |         37        0.37       99.44
         19 |         28        0.28       99.72
         20 |         11        0.11       99.83
         21 |          7        0.07       99.90
         22 |          5        0.05       99.95
         23 |          4        0.04       99.99
         25 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 25 Oct 2017