Here are my observations (note that I'm not actually posting my deadname here, but I'll still post my thoughts on it):
Old first name: My parents were spot on. I'm well within the typical age, and the median year was only four years off from my birth year. It had a very high spike in the 70s and 80s, and it's since gone down to 1970 levels and stayed there.
Old middle name: On the other hand, my parents gave me an old man's name. The age range starts at 47, and I'm 30. It peaked in the early '60s and was a curiosity by the time I was born.
New first name (Amy): I'm a little off here, but not by much. I'm only a year outside the typical range. When I was born, it had already been in decline for a few years, but it had far from bottomed out yet.
New middle name (Jessica): Spot on. Median age is only three years away from my actual birth year, and I was born really close to the peak. Oddly enough, when I was putting together my new name, I originally wanted Jessica to be my first name, but I ended up changing my mind and making it my middle name because I liked Amy better. Shame it crashed so hard in the last few years.