a 5% risk free return is not bad. I would actually say that if your job did not change over those decades, it might not make sense to get paid more than just matching inflation!
The biggest jump came in 2017-2018 when I moved to Washington, from $25/hr to $35/hr to $48/hr in 18 months and it increased again in 2020 when I moved to my current job.
Idk if I am extremely lucky or if I don't recognize the value my skills as well as my employers do. All I know if I am not averse to negotiating a little and that I keep my resume up to date and I test the waters from time to time just to see what's out there.
I've never really understood this line of thinking. Of course in retrospect now that all information is known, we can linearly quantify a per year rate of return as "non ideal".
But what is the point of that I wonder. This company took a chance on OP and they feel gratitude. This is enough imo.