Frequencies for first 10,000 rows of scopwi1r variable in nhamcsopd2002 dataset :

      scope |
  procedure |
write-in #1 |
   - recode |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,858       98.58       98.58
       1811 |          1        0.01       98.59
       2219 |          4        0.04       98.63
       3142 |          6        0.06       98.69
       3323 |          1        0.01       98.70
       3324 |          1        0.01       98.71
       4413 |          2        0.02       98.73
       4513 |         11        0.11       98.84
       4523 |         41        0.41       99.25
       4524 |          4        0.04       99.29
       4542 |          2        0.02       99.31
       4823 |          7        0.07       99.38
       4921 |          1        0.01       99.39
       5421 |          1        0.01       99.40
       5732 |         19        0.19       99.59
       6812 |          9        0.09       99.68
       6823 |          1        0.01       99.69
       7021 |         24        0.24       99.93
       9511 |          1        0.01       99.94
       9999 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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