Frequencies for first 10,000 rows of mancarec variable in namcs2009 dataset :

   how many |
    managed |
       care |
  contracts |
  does this |
   practice |
      have? |      Freq.     Percent        Cum.
------------+-----------------------------------
      blank |        151        1.51        1.51
       none |        831        8.31        9.82
         <3 |        830        8.30       18.12
       3-10 |      3,814       38.14       56.26
        >10 |      4,374       43.74      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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