Which expansion set has more legendary cards?

As you might know, there are 3 sets (Grand Tournament, Normal and Goblins vs Gnomes) in Hearthstone, not including adventures like League of Explorers.

How many unique legendary cards are there in each of these sets? I mean, how many cards are there in these sets, without considering their unpack chance.

There are 92 collectible Legendary cards: 33 in the Classic set (1 per class and 24 neutral), 20 in the Goblins vs Gnomes set (1 per class and 11 neutral), 20 in The Grand Tournament set (1 per class except 2 for Hunter and 10 neutral), 6 in the Naxxramas set (all neutral), 5 in the Blackrock Mountain set (all neutral), 5 in the League of Explorers set (all neutral), 1 in the Reward set (neutral), and 2 in the Promotion set (both neutral).

This information was taken directly from this page on the wiki: http://hearthstone.gamepedia.com/Legendary#Legendary