Frequencies for first 10,000 rows of othproc2 variable in namcs2006 dataset :

procedure 2 |      Freq.     Percent        Cum.
------------+-----------------------------------
       0000 |      9,926       99.26       99.26
       0449 |          1        0.01       99.27
       2319 |          1        0.01       99.28
       415- |          1        0.01       99.29
       5300 |          1        0.01       99.30
       5359 |          2        0.02       99.32
       6561 |          1        0.01       99.33
       7050 |          1        0.01       99.34
       8017 |          1        0.01       99.35
       8093 |          1        0.01       99.36
       8152 |          1        0.01       99.37
       8602 |          1        0.01       99.38
       8604 |          1        0.01       99.39
       8628 |          1        0.01       99.40
       863- |          6        0.06       99.46
       8692 |          1        0.01       99.47
       9335 |          1        0.01       99.48
       9357 |          1        0.01       99.49
       9367 |          1        0.01       99.50
       9390 |          1        0.01       99.51
       9503 |          1        0.01       99.52
       9509 |          1        0.01       99.53
       9547 |          7        0.07       99.60
       9549 |          1        0.01       99.61
       9789 |          1        0.01       99.62
       9923 |          1        0.01       99.63
       9929 |          8        0.08       99.71
       9939 |          1        0.01       99.72
       9952 |          2        0.02       99.74
       9955 |          6        0.06       99.80
       9959 |          1        0.01       99.81
       9999 |         19        0.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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