What really matter is how many clicks you get.. at least that's what I think so.. but there are exceptions.. I think it is a good rate..
$0.16 per click is good for you. I got just $0.05 or $0.02 sometimes for just single click in adsense.
gooooooooooooooooooooooooooooooood . may be i make 20 clicks and the cost /click is ranged from 3 cent to 10 cent not more the most of your visitors coming from where
0.16 is actually pretty good but you need to be getting a lot of clicks. If you are only getting 0.08 per click and pulling in four times as many clicks you're making twice as much with a lower cpc. How many clicks do you get and in what niche? I think that would help us answer you better.