Frequencies for first 10,000 rows of proc22d variable in namcs2012 dataset :

Procedure 2 |
  - 2 digit |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |      9,193       91.93       91.93
         00 |          1        0.01       91.94
         03 |          3        0.03       91.97
         08 |          1        0.01       91.98
         11 |          1        0.01       91.99
         12 |          2        0.02       92.01
         13 |          3        0.03       92.04
         16 |          7        0.07       92.11
         17 |          3        0.03       92.14
         20 |          1        0.01       92.15
         21 |          1        0.01       92.16
         22 |          2        0.02       92.18
         31 |          1        0.01       92.19
         38 |          8        0.08       92.27
         39 |         10        0.10       92.37
         42 |          1        0.01       92.38
         45 |          7        0.07       92.45
         48 |          1        0.01       92.46
         49 |          4        0.04       92.50
         53 |          1        0.01       92.51
         54 |          1        0.01       92.52
         55 |          2        0.02       92.54
         56 |          1        0.01       92.55
         57 |          8        0.08       92.63
         58 |          2        0.02       92.65
         60 |          1        0.01       92.66
         63 |          2        0.02       92.68
         68 |          1        0.01       92.69
         69 |          4        0.04       92.73
         75 |          1        0.01       92.74
         78 |          1        0.01       92.75
         79 |          1        0.01       92.76
         80 |          2        0.02       92.78
         81 |          6        0.06       92.84
         83 |          2        0.02       92.86
         85 |          8        0.08       92.94
         86 |         23        0.23       93.17
         87 |          5        0.05       93.22
         88 |         25        0.25       93.47
         89 |        260        2.60       96.07
         90 |        123        1.23       97.30
         91 |         50        0.50       97.80
         92 |          7        0.07       97.87
         93 |         47        0.47       98.34
         94 |          6        0.06       98.40
         95 |         44        0.44       98.84
         96 |          7        0.07       98.91
         97 |          2        0.02       98.93
         99 |        107        1.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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