When I was little, I heard many favourite love songs, but I couldn’t remember exactly how old I was at the time. Then recently I came across this site where it gives the top hit songs of various years, and from that I was able to piece together my memories, and how old I was at the time. My mother used to sing me songs when I was little, so it helped me understand when she heard them also. These top songs probably apply to America, but I think it can help you no matter what part of the world you live in.
So I hope this helps you and that it brings back lots of good memories of your favourite love songs.