People who queue up Jungle primary and Support secondary role in RANKED, how often are you being placed as Support?

I usually queue up as Jungle/Mid since I am a Jungle main. Mid is a super popular role, so I figure it will just filter me into Jungle 99.9% of the time. However, I don't really trust my ability to play Mid in ranked at all (I have never been given my secondary role) and have been considering switching my secondary role to Support since it synergizes pretty well with typical Jungle behavior I have adopted over time. The thing is, any time I queue up, Jungle and Support usually both have priority queues. I have no desire to be playing support more than like 1 out of 10 games. My question is, for those who queue Jungle+Support, what do you think is the % breakdown of the role you get on like a 10 game sample size?

Edit for clarification: Guys, I’m not trying to avoid being autofilled. Queuing for Jungle alone which is often priority queue is enough to ensure that. I already queue Jungle and Mid with the goal of only getting Jungle. My question is SPECIFICALLY about queuing for Jungle + Support, both of which are typically HIGH PRIORITY. This makes me wonder if the role placement will be similar to Jungle Mid where I’m basically never playing secondary role, or if I’d be playing support say 1 of every 5 games now since it’s also a more in demand role.