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I’m a learner of English Language.

I was watching the video podcast, CNN Student News,
I found a phrase I couldn’t understand. Could you put this sentence into another setence or paraphrase it?

“The scores are in for the class of 2007″

What is the meaning of “the scores are in”?

The whole passage is like this:

AZUZ: Switching gears now, it’s the three letters that can strike fear into the hearts of students: SAT. It’s not the only college entrance exam, but it’s still the biggest. The scores are in for the class of 2007, and the numbers are down, but not by much. Average scores on all three sections of the test dropped from the previous year….

Dear ppl,
I’ve subscribed to a vocabulary improving e-mail newsletter at a language school’s website. Today this sentence was sent to me as an example. Please help me: does it make sense at all? Because I cannot make anything out of it. Probably it’s due to my poor English…