Frequencies for first 10,000 rows of scopewi1 variable in nhamcsopd2007 dataset :

scope write |
      in #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |      9,752       97.52       97.52
       1811 |          1        0.01       97.53
       2911 |          1        0.01       97.54
       3142 |          3        0.03       97.57
       3323 |          5        0.05       97.62
       3422 |          2        0.02       97.64
       4223 |          1        0.01       97.65
       4311 |          1        0.01       97.66
       4413 |          7        0.07       97.73
       4498 |          8        0.08       97.81
       4513 |         21        0.21       98.02
       4516 |          2        0.02       98.04
       4523 |        105        1.05       99.09
       4524 |          1        0.01       99.10
       4542 |          3        0.03       99.13
       4823 |          3        0.03       99.16
       4921 |          2        0.02       99.18
       5123 |          4        0.04       99.22
       5421 |          7        0.07       99.29
       5732 |         18        0.18       99.47
       6812 |          6        0.06       99.53
       7021 |         21        0.21       99.74
       8021 |          6        0.06       99.80
       8026 |         13        0.13       99.93
       9999 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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