Frequencies for first 10,000 rows of mancarec variable in namcs2006 dataset :

   how many |
    managed |
       care |
  contracts |
  does this |
   practice |
      have? |      Freq.     Percent        Cum.
------------+-----------------------------------
      blank |        488        4.88        4.88
       none |      1,025       10.25       15.13
         <3 |        913        9.13       24.26
       3-10 |      3,370       33.70       57.96
        >10 |      4,204       42.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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