Frequencies for first 10,000 rows of prmanr variable in namcs2015 dataset :

 Percent of |
    patient |
       care |
    revenue |
       from |
    managed |
       care |
  contracts |      Freq.     Percent        Cum.
------------+-----------------------------------
         -8 |      1,612       16.12       16.12
         -6 |        396        3.96       20.08
          1 |      3,660       36.60       56.68
          2 |      1,474       14.74       71.42
          3 |      1,183       11.83       83.25
          4 |      1,675       16.75      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 25 Oct 2017