Frequencies for first 10,000 rows of timemd variable in namcs2001 dataset :

 time spent |
       with |
  physician |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        262        2.62        2.62
          1 |          1        0.01        2.63
          2 |         15        0.15        2.78
          3 |         25        0.25        3.03
          4 |         27        0.27        3.30
          5 |        300        3.00        6.30
          6 |         52        0.52        6.82
          7 |         83        0.83        7.65
          8 |        111        1.11        8.76
          9 |         24        0.24        9.00
         10 |      1,586       15.86       24.86
         11 |         10        0.10       24.96
         12 |        156        1.56       26.52
         13 |         33        0.33       26.85
         14 |         22        0.22       27.07
         15 |      2,932       29.32       56.39
         16 |         19        0.19       56.58
         17 |         20        0.20       56.78
         18 |         50        0.50       57.28
         19 |          3        0.03       57.31
         20 |      1,625       16.25       73.56
         21 |          3        0.03       73.59
         22 |         22        0.22       73.81
         23 |         22        0.22       74.03
         24 |         11        0.11       74.14
         25 |        414        4.14       78.28
         26 |          2        0.02       78.30
         28 |         10        0.10       78.40
         30 |      1,211       12.11       90.51
         32 |          1        0.01       90.52
         35 |         63        0.63       91.15
         37 |          1        0.01       91.16
         38 |          2        0.02       91.18
         40 |        149        1.49       92.67
         42 |          1        0.01       92.68
         43 |          1        0.01       92.69
         45 |        319        3.19       95.88
         46 |          1        0.01       95.89
         48 |         18        0.18       96.07
         50 |        122        1.22       97.29
         53 |          2        0.02       97.31
         55 |         50        0.50       97.81
         60 |        177        1.77       99.58
         65 |          4        0.04       99.62
         70 |          2        0.02       99.64
         75 |          1        0.01       99.65
         80 |          1        0.01       99.66
         85 |          1        0.01       99.67
         90 |          7        0.07       99.74
         98 |          1        0.01       99.75
        100 |          3        0.03       99.78
        110 |          2        0.02       99.80
        120 |         12        0.12       99.92
        135 |          2        0.02       99.94
        150 |          2        0.02       99.96
        240 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016