Get rating from a review

Question

In my requirement, I have a review id with me by using that, I am getting complete information of that specific review by using the following code:

$review = Mage::getModel('review/review')->load($reviewId);

The above code is giving complete information but not just ratings. When I did Mage::log($review->getData()), I can see the following information which is clearly showing absence of ratings.

(
    [review_id] => 676
    [created_at] => 2014-01-31 15:19:24
    [entity_id] => 1
    [entity_pk_value] => 669
    [status_id] => 1
    [detail_id] => 675
    [store_id] => 1
    [title] => Hulk@hell.com
    [location] => Hulk mania
    [view_type] => 1
    [detail] => Hulk smash
    [nickname] => Hulk
    [customer_id] => 
    [course] => 
    [ystart] => 0
    [yend] => 0
    [stores] => Array
        (
            [0] => 0
            [1] => 1
        )

)

Please help

EDIT: I tried this which is giving all the three rating values but I was looking for percentage. and even the code is bigger and seems to be degrading performance.

$review = Mage::getModel('review/review')
                ->load($reviewId);

$data = $review->getData();
$votes = Mage::getModel('rating/rating_option_vote')
        ->getResourceCollection()
        ->setEntityPkFilter($data['entity_pk_value'])
        ->addFilter('review_id', $reviewId)
        // ->setStoreFilter(Mage::app()->getStore()->getId())
        ->load();