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

  total number of |
   non-medication |
       treatments |      Freq.     Percent        Cum.
------------------+-----------------------------------
                0 |      7,047       70.47       70.47
                1 |      2,132       21.32       91.79
                2 |        465        4.65       96.44
                3 |         45        0.45       96.89
                4 |         11        0.11       97.00
Entire item blank |        300        3.00      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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