How many credits is an entire college year?

I'm looking at college credits and I'm getting a little confused on the payments.

Here is the website:

http://www.spsu.edu/tuitionfees/undergradtuition/

I'm in-state tuition. Assuming I take 12-credit hours to be a full-time student, would that be $2,749.28 a year or $2,749.28 a semester?

If that's a year then I'd have to pay $2,749.28 x 4 for the entire 4 years of college (at least tuition). Then I assume that the fees at the bottom would also be yearly so it'd be ($2,749.28 * 4) + ($698.00 * 4) + (Freshman dorm is $2,700 per semester) + (($595/2) * 36) for everything, correct?

If I'm right it should be about $25,110 not including books.

That can't be right can it? It has to be more expensive. If I had to pay tuition each semester wouldn't it just add another ~$3000? I'm so confused. Haha. Here are links if you can help any.

Tuition in fees (I'm in state)- http://www.spsu.edu/tuitionfees/undergradtuition/

Housing (going for double occupancy Hornet Village Suites for freshman year and 2bed/2bath University Commons Apartment for the rest)- http://www.spsu.edu/tuitionfees/housingfees/index....

Which does not seem right now that I think of it... That's pretty cheap isn't it?