Frequencies for first 10,000 rows of sexfl variable in nhamcsopd2006 dataset :

        sex |
   imputed? |      Freq.     Percent        Cum.
------------+-----------------------------------
Not imputed |      9,920       99.20       99.20
    Imputed |         80        0.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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