When will gay marriage become universally accepted?

[Gunnar Larsson]

Here's an interesting chart that is relevant to the topic (outdated obviously):

Very surprised that it wasn't until 1995 that interracial marriages got majority approval. Do you know how the question was formulated in the poll? Something along the line "would you be ok with your child marrying someone of a different race" would assumably get a different answer than "should people of different races be alowed to marry". Still, 1995 is not that long ago.