Frequencies for first 10,000 rows of dme variable in namcs2007 dataset :

    durable |
    medical |
  equipment |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      9,921       99.21       99.21
        yes |         79        0.79      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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