XML Port problem with repeating Elements

I'm having a little trouble understanding XMLPorts. This is the output I'm getting;



from this dataport



However I don't want to see the Products element repeating, it should be

<Products>
<SerialNumber>1000<SerialNumber>
<SerialNumber>2000<SerialNumber>
<SerialNumber>3000<SerialNumber>
<SerialNumber>4000<SerialNumber>
</Products>

Can't see where I'm going wrong