OTTAWA—There is a noticeable decline in how trusting Canadians are of their leaders and institutions as the pandemic drags on, and it’s particularly striking among those who remain anxious or stressed about COVID-19, a new survey suggests. “When we have 46 percent of Canadians saying they still feel anxiety and stress, it’s taking a toll on trust in Canada,” said Bruce MacLellan, CEO of Proof Strategies. The data is part of the 2022 edition of Proof’s trust index, a survey Proof normally does annually but has been conducting more than once a year since the pandemic began. This version is based on an online poll completed by 1,536 people, Jan. 4-14, but cannot be given a margin of error because internet polls are not considered random samples. The trust index suggests general trust in governments, business, media and advocacy groups was already falling before the pandemic. The 2018 poll said …