Frequencies for first 10,000 rows of amb12d variable in nhamcsopd2001 dataset :

   surgical |
  procedure |
     #1 - 2 |
      digit |      Freq.     Percent        Cum.
------------+-----------------------------------
         00 |      9,405       94.05       94.05
         03 |         29        0.29       94.34
         04 |          4        0.04       94.38
         05 |          1        0.01       94.39
         06 |          1        0.01       94.40
         08 |          6        0.06       94.46
         09 |          1        0.01       94.47
         12 |          2        0.02       94.49
         13 |          7        0.07       94.56
         14 |          7        0.07       94.63
         15 |          2        0.02       94.65
         16 |          4        0.04       94.69
         19 |          1        0.01       94.70
         20 |         14        0.14       94.84
         21 |          1        0.01       94.85
         22 |          3        0.03       94.88
         23 |          3        0.03       94.91
         27 |          4        0.04       94.95
         28 |          4        0.04       94.99
         29 |          2        0.02       95.01
         31 |          4        0.04       95.05
         33 |          1        0.01       95.06
         34 |          3        0.03       95.09
         35 |          1        0.01       95.10
         37 |         10        0.10       95.20
         38 |         15        0.15       95.35
         39 |          2        0.02       95.37
         40 |          1        0.01       95.38
         41 |          4        0.04       95.42
         44 |          1        0.01       95.43
         45 |         19        0.19       95.62
         46 |          4        0.04       95.66
         48 |          1        0.01       95.67
         49 |          8        0.08       95.75
         50 |          2        0.02       95.77
         51 |          9        0.09       95.86
         53 |         20        0.20       96.06
         54 |          3        0.03       96.09
         55 |          2        0.02       96.11
         57 |          3        0.03       96.14
         58 |          1        0.01       96.15
         60 |          8        0.08       96.23
         62 |          1        0.01       96.24
         64 |          4        0.04       96.28
         65 |          2        0.02       96.30
         66 |         14        0.14       96.44
         67 |         10        0.10       96.54
         68 |         16        0.16       96.70
         69 |         12        0.12       96.82
         70 |          9        0.09       96.91
         71 |          4        0.04       96.95
         73 |          1        0.01       96.96
         74 |          2        0.02       96.98
         75 |          2        0.02       97.00
         77 |          3        0.03       97.03
         78 |          4        0.04       97.07
         79 |          2        0.02       97.09
         80 |         13        0.13       97.22
         81 |         19        0.19       97.41
         82 |          1        0.01       97.42
         83 |          2        0.02       97.44
         84 |          1        0.01       97.45
         85 |         23        0.23       97.68
         86 |        133        1.33       99.01
         87 |          2        0.02       99.03
         88 |          1        0.01       99.04
         89 |          1        0.01       99.05
         90 |          1        0.01       99.06
         92 |          2        0.02       99.08
         93 |          8        0.08       99.16
         96 |          8        0.08       99.24
         97 |         50        0.50       99.74
         98 |          4        0.04       99.78
         99 |         22        0.22      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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