I'm looking for different data than what the article presents. The article mentions what a hypothetical owner that is past the fixed-rate grace period pays. I a

I'm looking for different data than what the article presents. The article mentions what a hypothetical owner that is past the fixed-rate grace period pays. I am looking for the percentage of homeowners overall that actually falls into that bucket that feels these rate hikes immediately. For example, if (hypothetically) 100% of the adjustable rate mortgages were opened last year, and they all had a 7-year fixed-rate grace period, then the rate hike doesn't actually affect any of them right now.