Frequencies for first 10,000 rows of scopwi2r variable in namcs2002 dataset :

      Scope |
  procedure |
write-in #2 |
   - recode |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,984       99.84       99.84
       2121 |          1        0.01       99.85
       3142 |          1        0.01       99.86
       4513 |          3        0.03       99.89
       4523 |          5        0.05       99.94
       4921 |          4        0.04       99.98
       5631 |          1        0.01       99.99
       8923 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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