Frequencies for first 10,000 rows of proc6r variable in nhamcsopd2011 dataset :

    Proc #6 |
    numeric |
     recode |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |      9,992       99.92       99.92
       5359 |          1        0.01       99.93
       5421 |          1        0.01       99.94
       6522 |          1        0.01       99.95
       8630 |          1        0.01       99.96
       8937 |          1        0.01       99.97
       8938 |          2        0.02       99.99
       9959 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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