Frequencies for first 10,000 rows of scpwi12d variable in nhamcsopd2007 dataset :

scope write |
  in #1 - 2 |
      digit |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |      9,752       97.52       97.52
         18 |          1        0.01       97.53
         29 |          1        0.01       97.54
         31 |          3        0.03       97.57
         33 |          5        0.05       97.62
         34 |          2        0.02       97.64
         42 |          1        0.01       97.65
         43 |          1        0.01       97.66
         44 |         15        0.15       97.81
         45 |        132        1.32       99.13
         48 |          3        0.03       99.16
         49 |          2        0.02       99.18
         51 |          4        0.04       99.22
         54 |          7        0.07       99.29
         57 |         18        0.18       99.47
         68 |          6        0.06       99.53
         70 |         21        0.21       99.74
         80 |         19        0.19       99.93
         99 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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