What does it take to get into top 100 in Runescape

What does it take to get into top 100 in Runescape highscores nowadays? Check out these astonishing figures. I know that with my tempo, I'd reach those levels in approximately 23 years. Ouch...

There are also numbers for getting into top 1000 (total and in every skill). Those are more manageable, but still so freaking far away :) I actually used to be around 950 in Farming for a while, but it's in the past now and I don't think I'll ever get into top 1000 in any skill again. No matter how efficient you are, it does come down to playing time. 6-8 hours a week won't cut it.