Frequencies for first 10,000 rows of proc53d variable in namcs2011 dataset :

Procedure 5 |
  - 2 digit |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |      9,948       99.48       99.48
        173 |          1        0.01       99.49
        282 |          1        0.01       99.50
        494 |          1        0.01       99.51
        656 |          1        0.01       99.52
        891 |          5        0.05       99.57
        892 |         15        0.15       99.72
        893 |          6        0.06       99.78
        895 |         10        0.10       99.88
        903 |          1        0.01       99.89
        909 |          1        0.01       99.90
        920 |          3        0.03       99.93
        950 |          3        0.03       99.96
        954 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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