Frequencies for first 10,000 rows of telephon variable in namcs2008 dataset :

  telephone |
  follow up |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      9,727       97.27       97.27
        yes |        273        2.73      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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