Frequencies for first 10,000 rows of hosvisr variable in namcs2001 dataset :

       does |
  physician |
       make |
   hospital |
    visits? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      2,007       20.07       20.07
          1 |      6,588       65.88       85.95
          2 |      1,405       14.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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