WASHINGTON — Scores on the SAT college entrance exam were largely stagnant for a third year, although African-American students made slight gains, the College Board said today.

Average scores in reading, math, and writing were the same in 2012 and 2013.

Students scored an average 496 in reading, down one point from 2011.

Average math scores have remained stuck at 514 over the last three years.

And the average writing score, 488, was down one point from 2011.

The top score possible on each section is 800 and the highest possible score is 2400.

A perfect score was achieved in 2013 by 494 people — less than a third of 1 percent of all test takers, according to the College Board, a nonprofit membership organization of schools and colleges that owns the exam.

Men, on average, scored better in reading and math, while women on average did better in writing.

African-American students on average scored 431 in reading, 429 in math and 418 in writing.

That’s slightly higher than the previous two years.

The average for all Hispanic students was 450 in reading, 461 in math, and 443 in writing.

On average, they did slightly better in reading and writing this year than last, but math scores declined by one point.

For American Indian and Alaskan natives, scores have mostly decreased slightly since 2011.

The average score in 2013 was 480 in reading, 486 in math and 461 in writing.

Asian students on average scored 521 in reading, 597 in math and 527 in writing.

Online: http://press.college board.org/sat