Frequencies for first 10,000 rows of npp_type_cd variable in pos2004 dataset :

    type of |
non-partici |
     pating |
   provider |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,902       99.02       99.02
          E |         31        0.31       99.33
          F |         67        0.67      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017