Wow do people still use these languages enough for them to be in the top 20? I wrote a lot of Pascal after Basic and some Delphi when it came out but I haven't heard anything about either in like 15-20 years.

The thing about language popularity is mostly about its ecosystem -- libraries, teachers, friends, and corporations behind them. However, all ecosystem are transient in nature, and all code that interwines and depends on a ecosystem will go with it in time. I guess that is why as I get older, I find myself more attracted to classical languages that do not have much ecosystem anymore. It makes my code to feel less mortal in a sense.