Frequencies for first 10,000 rows of amb12d variable in nhamcsopd2004 dataset :

   surgical |
  procedure |
     #1 - 2 |
      digit |      Freq.     Percent        Cum.
------------+-----------------------------------
         00 |      9,329       93.29       93.29
         03 |         10        0.10       93.39
         04 |          7        0.07       93.46
         05 |          1        0.01       93.47
         06 |          4        0.04       93.51
         08 |          7        0.07       93.58
         11 |          4        0.04       93.62
         12 |          4        0.04       93.66
         13 |         14        0.14       93.80
         14 |          9        0.09       93.89
         16 |          1        0.01       93.90
         18 |          4        0.04       93.94
         20 |          4        0.04       93.98
         21 |          4        0.04       94.02
         22 |          2        0.02       94.04
         23 |          4        0.04       94.08
         25 |          1        0.01       94.09
         27 |          2        0.02       94.11
         28 |          5        0.05       94.16
         30 |          1        0.01       94.17
         33 |          2        0.02       94.19
         34 |          8        0.08       94.27
         36 |          1        0.01       94.28
         37 |          5        0.05       94.33
         38 |         17        0.17       94.50
         39 |          4        0.04       94.54
         40 |          3        0.03       94.57
         41 |          3        0.03       94.60
         43 |          5        0.05       94.65
         44 |          4        0.04       94.69
         45 |         18        0.18       94.87
         47 |          3        0.03       94.90
         48 |          4        0.04       94.94
         49 |          8        0.08       95.02
         50 |          7        0.07       95.09
         51 |         11        0.11       95.20
         53 |         14        0.14       95.34
         54 |          2        0.02       95.36
         55 |          7        0.07       95.43
         56 |          4        0.04       95.47
         57 |          5        0.05       95.52
         58 |          5        0.05       95.57
         59 |          3        0.03       95.60
         60 |          6        0.06       95.66
         64 |          4        0.04       95.70
         65 |          2        0.02       95.72
         66 |          9        0.09       95.81
         67 |         15        0.15       95.96
         68 |         25        0.25       96.21
         69 |          5        0.05       96.26
         70 |          3        0.03       96.29
         71 |          3        0.03       96.32
         73 |          6        0.06       96.38
         74 |          3        0.03       96.41
         75 |          7        0.07       96.48
         76 |          1        0.01       96.49
         77 |          1        0.01       96.50
         78 |          4        0.04       96.54
         79 |         17        0.17       96.71
         80 |         14        0.14       96.85
         81 |         19        0.19       97.04
         82 |          5        0.05       97.09
         83 |          6        0.06       97.15
         85 |         25        0.25       97.40
         86 |        129        1.29       98.69
         88 |          5        0.05       98.74
         89 |          2        0.02       98.76
         91 |          1        0.01       98.77
         92 |          6        0.06       98.83
         93 |         31        0.31       99.14
         94 |          1        0.01       99.15
         96 |          8        0.08       99.23
         97 |         24        0.24       99.47
         98 |          6        0.06       99.53
         99 |         47        0.47      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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