Frequencies for first 10,000 rows of sourcename variable in plan2018 dataset :

Source Name |      Freq.     Percent        Cum.
------------+-----------------------------------
       HIOS |      7,344       73.44       73.44
        OPM |         15        0.15       73.59
      SERFF |      2,641       26.41      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 23 May 2018