According to a Fox News poll released Friday, a plurality of Americans support gay marriage.

Pollsters found that 49 percent of voters favor marriage equality, while 46 percent remain opposed. That is a 17 percentage point increase since 2003, when 58 percent said they were opposed.

Support among young people under 35 has increased from 53 percent to 62 percent over the past decade, according to the poll.

Those most likely to oppose such unions include “very” conservatives (82%), Tea Partiers (75%), white evangelical Christians (70%) and Republicans (64%).

A majority (53%) of respondents believe that the U.S. Constitution guarantees gay men and lesbians the right to marry, while 43 percent disagree.

Pollsters also found that a large majority (59%) of opponents think all or most states will allow same-sex marriages within 20 years.

The poll also found that supporters are more accepting than opponents of those who disagree with them on the issue. A large majority (over 75%) of supporters believe that opponents have a right to their views, while just over half of opponents feel the same about supporters.