Frequencies for first 10,000 rows of epubhlth variable in namcs2005 dataset :

       does |
  pracice's |
 emr system |
    include |
     public |
     health |
 reporting? |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        721        7.21        7.21
          2 |      1,358       13.58       20.79
          3 |        422        4.22       25.01
          4 |         41        0.41       25.42
          8 |      7,458       74.58      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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