Frequencies for first 10,000 rows of ereminde variable in nhamcsed2009 dataset :

    does ed |
       have |
computerize |
   d system |
        for |
  reminders |
        for |
interven/sc |
    reening |
     tests? |      Freq.     Percent        Cum.
------------+-----------------------------------
         -8 |        925        9.25        9.25
          1 |      4,470       44.70       53.95
          2 |      4,605       46.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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