Frequencies for first 10,000 rows of diabetes variable in natlterr1997 dataset :

   Diabetes |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        168        1.68        1.68
          2 |      9,828       98.28       99.96
          9 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015