Frequencies for first 10,000 rows of urf_diab variable in natl2005 dataset :

   Diabetes |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        348        3.48        3.48
          2 |      9,529       95.29       98.77
          9 |        123        1.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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