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

      PF Filiing |
Requirement Code |
           (New) |      Freq.     Percent        Cum.
-----------------+-----------------------------------
No 990-PF return |      9,383       93.83       93.83
   990-PF return |        613        6.13       99.96
               3 |          4        0.04      100.00
-----------------+-----------------------------------
           Total |     10,000      100.00

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