Stabilizing Monthly Pageviews Using SEMrush Data: Seeking Advice

hi - I'm looking to leverage SEMrush traffic data (visits + pages per visit) to come up with what "average" monthly pageviews are for a website. I've found that continuously looking back to last month creates volatility in reporting and I'm looking for a way to stabilize it, if possible. based on what I see in the monthly data, I was thinking of doing something like:

(avg. monthly visits over the last 12 months) * (median pages per visit over the last 12 months)

wanted to see if anyone else out there has ever had an approach they liked. thanks!