Frequencies for pf_filing_req_cd variable in eobmfwy dataset :

      PF Filiing |
Requirement Code |
           (New) |      Freq.     Percent        Cum.
-----------------+-----------------------------------
No 990-PF return |      4,594       93.11       93.11
   990-PF return |        339        6.87       99.98
               3 |          1        0.02      100.00
-----------------+-----------------------------------
           Total |      4,934      100.00

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