record counter to display

hi i need to displa the numer of rebords as 0001 0002 .... so on

i am using

gv_seqno_sagmeld = sy-tabix.

wa_sagmeld_outtab-seqno = gv_seqno_sagmeld. " Display

now there are multiple entries coming for it

like

00001

00002

00002

why it is like that

why i am having duplicate display of several records

nishant