Frequencies for first 10,000 rows of mancarec variable in namcs2011 dataset :

  Number of |
    managed |
       care |
  contracts |      Freq.     Percent        Cum.
------------+-----------------------------------
      Blank |        371        3.71        3.71
       None |        781        7.81       11.52
         <3 |      1,249       12.49       24.01
       3-10 |      2,732       27.32       51.33
        >10 |      4,867       48.67      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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