A majority of voters in Massachusetts support the state's nearly 8-year-old gay marriage law, a new poll has found.

According to a Public Policy Polling survey of 936 Massachusetts voters released on Tuesday, 58 percent support marriage equality while 12 percent are opposed. Eleven percent said they were not sure.

Eighty-six percent of respondents said the relationships of gay and lesbian couples should be recognized with either marriage (55%) or civil unions (31%). Only 12 percent said there should be no legal recognition of a gay couple's relationship.

When pollsters asked, “Has the legalization of gay marriage in Massachusetts had a positive or negative impact on your life, or has it not had any impact at all?” two-thirds of voters – 67 percent – said it had not “had any impact at all” on their lives. Nineteen percent said it's had a positive impact and 14 percent said it's had a negative one.

Massachusetts will celebrate 8 years of marriage equality on May 17.

The PPP survey has a margin of error of plus or minus 3.2 percentage points.

(Related: Scott Brown says gay marriage in Massachusetts is “settled law.”)