Frequencies for first 10,000 rows of casemix variable in psfltc dataset :

   Case Mix |
      Index |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,867       68.67       68.67
      .0001 |         46        0.46       69.13
          1 |      3,087       30.87      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 24 Sep 2018