number of connection on wan ip

Hi!
On a routerboard CCR1016-12G i m trying to print out the number of established and related connection on my wan ip address. (or a specific ethernet port if it s possible). I have a few local network which are SNAT on the same router. (router on a stick topology)

I managed to print out the total established connections with this command:

ip firewall connection print count-only where tcp-state=established

My question is: Can i print out on my public address the number of established (and separately the number of related connections) connections, if i have multiple public addresses?