Frequencies for first 10,000 rows of share variable in namcs2003 dataset :

   do other |
 physicians |
 share care |
        for |
   problem? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        234        2.34        2.34
          1 |      2,623       26.23       28.57
          2 |      6,229       62.29       90.86
          3 |        914        9.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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