A 2017 CROP (polling firm) poll showed that 74% of Canadians found it "great that in Canada, two people of the same sex can get married". 26% disagreed. Support for same-sex marriage was higher among women (79%) than among men (70%) and higher among French speakers (82%) than English speakers (73%). Those with a higher income, a university degree or who were born in Canada were also more likely to support same-sex marriage. When divided by age, young people were overwhelmingly in support (82% among 18-24-year-olds and 86% among 25-34-year-olds) and, while people over 65 were less likely to be in favour, same-sex marriage still enjoyed 66% popular support among people of that age group. The most supportive province was Quebec (80%), followed by 78% in the four Atlantic Canada provinces, 75% in British Columbia, 73% in Ontario, 70% in Manitoba and Saskatchewan and 68% in Alberta.

Based on the above article, answer a question. What group had the highest percentage of people supporting same sex marriage?
25-34-year-olds