Frequencies for first 10,000 rows of dispfl variable in namcs1996 dataset :

  was visit |
disposition |
   imputed? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,760       97.60       97.60
          1 |        240        2.40      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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