Frequencies for ectoe variable in namcsphys2005_2010 dataset :

  does your |
   practice |
     have a |
computerize |
   d system |
 for orders |
 for tests? |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |         36        0.48        0.48
         -8 |         63        0.85        1.33
         -7 |      1,685       22.62       23.95
          1 |      2,148       28.84       52.79
          2 |      3,350       44.97       97.76
          4 |        167        2.24      100.00
------------+-----------------------------------
      Total |      7,449      100.00

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