I'd say there is no way it peaked in 83 considering how vast it has become since then. 2004 is probably the high point for my personal favorite genre, power met

I'd say there is no way it peaked in 83 considering how vast it has become since then. 2004 is probably the high point for my personal favorite genre, power metal, for example (big releases from Nightwish, Sonata Arctica, Kamelot, Angra, and Edguy that year).