Frequencies for first 10,000 rows of scopproc variable in nhamcsopd2005 dataset :

      scope |
  procedure |
 ordered or |
   provided |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      9,821       98.21       98.21
        yes |        179        1.79      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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