Monogamous couples how many times do you have sexual activity per month?

I'm asking about any mutual sexual activity not how many times you masturbate. Oral, handjobs, penetration all count. I'm in a pretty dead bedroom situation as I have been tracking our sexual activity the last 7 months and we've only had sex twice each month, and most of those are just handjobs. I feel like this is a dead bedroom but want to get thoughts from others to see what's normal. I have a very high libido so this is really making me resent my partner of nearly 15 years.