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

   do other |
 physicians |
 share care |
        for |
   problem? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        373        3.73        3.73
          1 |      2,324       23.24       26.97
          2 |      6,224       62.24       89.21
          3 |      1,079       10.79      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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