It depends on what's changed for you in the last year. For young drivers, you can usually expect lower rates for each year of safe driving, as long as you maintain a clean driving record without tickets, accidents or claims. Once you reach your 30s, rates tend to stabilize until you hit age 60.
Your rates could go up if there are other factors that change besides your age, such as if you trade in your car for a more expensive model to insure, or you move to a big city.