POZNAN, Poland (AP) — A generation ago, Poland rationed sugar and flour while its citizens were paid one-tenth what West Germans earned. Today, the economy of the country has edged past Switzerland to become the world’s 20th largest with more than $1 trillion in annual output.It’s a historic leap from the post-Communist ruins of 1989-90 to European growth champion, which economists say has lessons on how to bring prosperity to ordinary people — and that the Trump administration says should be re...