Frequencies for prvdr_ctrl_type_cd variable in rnl_rpt265_94_2009 dataset :

   provider |
    control |
  type code |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        134        2.74        2.74
         11 |         16        0.33        3.07
          2 |         46        0.94        4.01
          3 |         14        0.29        4.29
          4 |      3,963       81.01       85.30
          5 |        214        4.37       89.68
          6 |        481        9.83       99.51
          7 |          1        0.02       99.53
          8 |         21        0.43       99.96
          9 |          2        0.04      100.00
------------+-----------------------------------
      Total |      4,892      100.00

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