"Years of experience" is a massively variable measure. I've known devs who have "one year of experience ten years in a row" and know far less about programming

"Years of experience" is a massively variable measure. I've known devs who have "one year of experience ten years in a row" and know far less about programming than some college graduates who have done internships at three different companies during college. "Years of experience" isn't as critical as "range of architectures" or applications/situations in which you've worked. You always learn something new at every shop where you work... if you're not getting a lot of variety in your job then seek it out -- or think about getting more experience at another employer.