Frequencies for first 10,000 rows of scopewi1 variable in nhamcsopd2008 dataset :

scope write |
      in #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |      9,712       97.12       97.12
       1229 |          1        0.01       97.13
       1621 |          1        0.01       97.14
       1699 |          1        0.01       97.15
       2219 |         13        0.13       97.28
       2911 |          1        0.01       97.29
       3142 |         10        0.10       97.39
       3322 |          2        0.02       97.41
       3323 |         17        0.17       97.58
       4223 |          1        0.01       97.59
       4498 |         11        0.11       97.70
       4513 |         44        0.44       98.14
       4516 |          5        0.05       98.19
       4523 |        101        1.01       99.20
       4524 |          4        0.04       99.24
       4823 |          5        0.05       99.29
       4921 |          1        0.01       99.30
       5213 |          3        0.03       99.33
       5421 |          9        0.09       99.42
       5521 |          1        0.01       99.43
       5631 |          4        0.04       99.47
       5732 |         15        0.15       99.62
       5822 |          1        0.01       99.63
       6812 |          4        0.04       99.67
       7021 |         17        0.17       99.84
       8021 |          3        0.03       99.87
       8026 |          4        0.04       99.91
       8878 |          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