Frequencies for first 10,000 rows of scopwi1r variable in namcs2006 dataset :

      scope |
write-in #1 |
    numeric |
     recode |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,842       98.42       98.42
       1621 |          1        0.01       98.43
       3422 |          1        0.01       98.44
       4223 |          1        0.01       98.45
       4413 |          5        0.05       98.50
       4513 |         30        0.30       98.80
       4523 |         86        0.86       99.66
       4524 |          1        0.01       99.67
       4823 |          7        0.07       99.74
       4921 |          1        0.01       99.75
       5123 |          4        0.04       99.79
       5421 |          6        0.06       99.85
       5732 |          6        0.06       99.91
       7021 |          1        0.01       99.92
       9999 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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