EX3301-TO

Is there a way to get the Bandwidth data out every 30 seconds from the router?
I can see it on the system monitor page, bytes sent and received. If I can get at this to an external service, or app. I can calculate data through up and down to the WAN in Mbs.
I dont see any SNMP, or other network monitor protocol settings, so assume those are out of the qestion.
I ideally want to present this in a graph on HomeAssistant
My old Sky router used to have this outputted via uPnP, but the ZyXel 3301-TO doesnt send this data out.