Jup, there are some good paying niches but your are at the middle i think. There are people who get $5 / $10 dollars or more for only 1 click.
You can sometimes even get $15-20 for a click. Not something I've seen very often, but it does happen
for insurance lawyers u can even get 40-50$ per click. CPC is variable depending on the competition of the keyword and the niche too. But 0.62 $ is good too as long as u get it on a regular basis. Congrats.
i once got 2.5$ for just one click it was from one of my Dental Blogs. They do have high paying keywords . 0.62$ as in your is good too. Enjoy hope you get more of these clicks.