Hi ​@Erin_C 
I don’t believe there is a way to specifically graph articles used by humans, but there is a report for Fin AI in the Performance tab in Fin AI Agent called “Fin AI agent content performance” that lists how often articles are used in Fin conversations and then some stats on whether it was resolved or not. I think it is also available in the standard Automation report in Reports.

Hopefully that helps with half your question