**I donot have NDM on my current site, hence this solution is untested. Though, worth giving a try.
Can you check the RECFM/LRECL that you have specified in the SYSOUT dataset; would also recommend you set RECFM to FBA or refer the NDM manual for the output dataset attributes.
The RECFM=FBA should do the trick though; can you please do a quick test run and confirm.
Go to SS - VIEW STATISTICS FOR A COMPLETED PROCESS
The choose the option P ... PRINT REPORT
Once you get the message "The Select Statistics report has been printed."
The stats would be printed under the TSO ID's SYSPRINT.
XX.LOLZ SELECT STATISTICS
CMD ==> P
The Select Statistics report has been printed. 07:07
CMD: S ... SUMMARY TABLE D ... DISPLAY REPORT 03.02.2016
P ... PRINT REPORT 2016.062
==> ______ ==> ______ ==> ______ ==> ______
==> ________ ==> ________ ==> ________ ==> ________
START DATE ==> 03.01.2016 ( MM.DD.YYYY )
START TIME ==> __________ (HH:MM:SSXM)
STOP DATE ==> TODAY_____ ( MM.DD.YYYY )
STOP TIME ==> __________ (HH:MM:SSXM)
CONDITION CODE: ==> __ ________
EXCLUDE ( MEMBER RECS ==> Y WTO RECS ==> Y ¬WTO RECS ==> N )