Frequencies for first 10,000 rows of pf_filing_req_cd variable in eobmf201612ms dataset :

      PF Filiing |
Requirement Code |
           (New) |      Freq.     Percent        Cum.
-----------------+-----------------------------------
No 990-PF return |      9,739       97.39       97.39
   990-PF return |        258        2.58       99.97
               3 |          3        0.03      100.00
-----------------+-----------------------------------
           Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Mar 2017