Frequencies for first 10,000 rows of hosvisr variable in namcs2010 dataset :

during last |
normal week |
         of |
  practice, |
   hospital |
    visits? |      Freq.     Percent        Cum.
------------+-----------------------------------
      blank |        416        4.16        4.16
         no |      5,128       51.28       55.44
        yes |      4,456       44.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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