Frequencies for prvdr_ctrl_type_cd variable in rnl_rpt265_94_1996 dataset :

   provider |
    control |
  type code |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         44        1.84        1.84
          0 |          1        0.04        1.88
          A |         26        1.09        2.96
          B |        110        4.59        7.55
          C |      1,881       78.51       86.06
          D |        212        8.85       94.91
          E |        122        5.09      100.00
------------+-----------------------------------
      Total |      2,396      100.00

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