Frequencies for first 10,000 rows of mancarec variable in namcs2007 dataset :

   how many |
    managed |
       care |
  contracts |
  does this |
   practice |
      have? |      Freq.     Percent        Cum.
------------+-----------------------------------
      blank |        272        2.72        2.72
       none |        832        8.32       11.04
         <3 |      1,051       10.51       21.55
       3-10 |      3,436       34.36       55.91
        >10 |      4,409       44.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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