Trudeau has made immigration his main weapon to blunt Canada’s big challenge of an aging and slowing population, and it has also helped fuel economic growth. That drove Canada’s population up at its fastest clip in more than six decades this year, Statistics Canada said.

But now a reversal of that trend is gradually taking hold. In the first six months of 2023 some 42,000 individuals departed Canada, adding to 93,818 people who left in 2022 and 85,927 exits in 2021, official data show.

The rate of immigrants leaving Canada hit a two-decade high in 2019, according to a recent report from the Institute for Canadian Citizenship (ICC), an immigration advocacy group. While the numbers went down during pandemic lockdowns, Statistics Canada data shows it is once again rising.

While that is a fraction of the 263,000 who came to the country over the same period, a steady rise in emigration is making some observers wary.