Frequencies for pf_filing_req_cd variable in eobmfhi dataset :

      PF Filiing |
Requirement Code |
           (New) |      Freq.     Percent        Cum.
-----------------+-----------------------------------
No 990-PF return |      7,527       92.91       92.91
   990-PF return |        570        7.04       99.95
               3 |          4        0.05      100.00
-----------------+-----------------------------------
           Total |      8,101      100.00

by Jean Roth , jroth@nber.org , 15 Apr 2019