HARRISBURG — The American population might be growing, but Pennsylvania remains a leading state for Americans to flee, rather than stay. The commonwealth is one of 18 states to lose population in 2022, according to new data from the Census Bureau, and one of the worst performers. The data is confirmation of a long-running trend: Pennsylvania has a population problem, and the end isn’t yet in sight. The latest Census data shows the American population grew by 1.26 million (0.4%) since a year ago, with the primary growth being more than 1 million immigrants landing on American soil. Natural change...