Frequencies for physicians_ctr variable in fte265_94_2011 dataset :

 Physicians |
   Contract |
S100000_L20 |
   00_C0200 |      Freq.     Percent        Cum.
------------+-----------------------------------
         .1 |          1        5.26        5.26
        .25 |          1        5.26       10.53
          1 |          1        5.26       15.79
          2 |          1        5.26       21.05
          . |         15       78.95      100.00
------------+-----------------------------------
      Total |         19      100.00

by Jean Roth , jroth@nber.org , 17 Feb 2018