How many ccs do you usually extract from double chin?

Usually, how many ccs do you need to remove for a double chin to be effective??
You can see a lot of the entire face,
 but it's hard to find a double chin or just a chin.
 
I got it today, and if you only have a double chin or chin line, 20cc is a lot, but mine is 25cc, so they say it's a lot, but it's just too candy-coated, so I can't tell.
 
Of course, I came here knowing that since this is a large hospital, they don't remove all the bone like other places (because I'm scared of sagging later), but I was curious about how much they remove at other places. If you know of a practice, I would be grateful if you could let me know.