No change? That's a shocker. Mine has changed every year over the last 22 years with my company, and it has more than doubled in the last 3 years. Never made a claim. Did you review the coverage? Sometimes they change it so that your coverage is not as good. While my homeowner's insurance policy just went up 31% from a year ago, they also doubled my wind & hail deductible. So, it was a double whammy.
My car insurance went up 22% IIRC, and I live in low population density area with no changes, no tickets, no claims.