Accumulating all source field values for target field in XSLT

Hi Folks,

I have a requirement that at source idoc i have segment PU1 occuring multiple times.And in PU1 i have PU5 ,P02 segments occuring multiple times.

At the requirement am able to replicate the occurence of PU1 but the values of all occurences of PU5 and P02 are coming in one field itself.

To have better clarity plz find the screenshots with the source Idoc Structure ,XSLT code & XSLT output

<InstNetAmt>

                                                                 <xsl:value-of select="./E1IDPU5[4]/MOABETR"/>

                                                                      </InstNetAmt>

Thanks & Regards,

Balu