Frequencies for first 10,000 rows of proc22d variable in namcs2011 dataset :

Procedure 2 |
  - 2 digit |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |      9,132       91.32       91.32
         03 |          4        0.04       91.36
         08 |          1        0.01       91.37
         17 |          2        0.02       91.39
         20 |          1        0.01       91.40
         21 |          3        0.03       91.43
         22 |          2        0.02       91.45
         28 |          2        0.02       91.47
         37 |          1        0.01       91.48
         38 |          5        0.05       91.53
         39 |          8        0.08       91.61
         42 |          2        0.02       91.63
         43 |          1        0.01       91.64
         45 |         15        0.15       91.79
         46 |          1        0.01       91.80
         48 |          5        0.05       91.85
         49 |          2        0.02       91.87
         50 |          1        0.01       91.88
         52 |          1        0.01       91.89
         53 |          5        0.05       91.94
         54 |          3        0.03       91.97
         61 |          1        0.01       91.98
         67 |          1        0.01       91.99
         69 |          1        0.01       92.00
         78 |          1        0.01       92.01
         81 |         17        0.17       92.18
         85 |          2        0.02       92.20
         86 |         23        0.23       92.43
         87 |          2        0.02       92.45
         88 |         13        0.13       92.58
         89 |        283        2.83       95.41
         90 |         54        0.54       95.95
         91 |         11        0.11       96.06
         92 |          1        0.01       96.07
         93 |         34        0.34       96.41
         94 |          5        0.05       96.46
         95 |        296        2.96       99.42
         96 |          8        0.08       99.50
         97 |          1        0.01       99.51
         99 |         49        0.49      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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