Internal Program Version: iptstate v2.3.0 (The man files)

IP Tables State implements the "state top" feature from IP Filter for IP Tables.
"State top" displays the states held by your stateful firewall in a "top"-like
manner. Since IP Tables doesn't have a built-in way to easily display this
information once, an option was added to iptstate to do this.

https://www.phildev.net/iptstate