Frequencies for first 10,000 rows of digsc12d variable in namcs2004 dataset :

diag/screen |
    service |
write-in #1 |
  - 2 digit |      Freq.     Percent        Cum.
------------+-----------------------------------
         00 |      8,907       89.07       89.07
         03 |          2        0.02       89.09
         04 |          1        0.01       89.10
         09 |          1        0.01       89.11
         16 |          8        0.08       89.19
         25 |          1        0.01       89.20
         27 |          1        0.01       89.21
         37 |          5        0.05       89.26
         38 |          1        0.01       89.27
         51 |          1        0.01       89.28
         57 |          1        0.01       89.29
         65 |          1        0.01       89.30
         75 |          7        0.07       89.37
         78 |          1        0.01       89.38
         79 |          4        0.04       89.42
         80 |          1        0.01       89.43
         81 |          6        0.06       89.49
         86 |         48        0.48       89.97
         87 |          2        0.02       89.99
         88 |        178        1.78       91.77
         89 |        303        3.03       94.80
         90 |         30        0.30       95.10
         91 |         70        0.70       95.80
         92 |          7        0.07       95.87
         93 |         95        0.95       96.82
         94 |         13        0.13       96.95
         95 |        132        1.32       98.27
         96 |         23        0.23       98.50
         97 |         15        0.15       98.65
         99 |        135        1.35      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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