Investors can be forgiven if they’d taken it for granted when the Dow Jones Industrial Average (DJI) climbed to 9034 on Jan. 2, just the first trading day of the year. They wouldn’t have realized at the time it would take until the 140th trading day of the new year to get back to those highs. The Dow industrial average finally shot back above the 9000-point mark in Thursday’s trading, adding 188 points to reach 9069, the best it’s closed since Nov. 5, after notching gains in eight of the l