Japan’s Nikkei share average closed at its highest since December 2015 on Friday as exporters benefitted from the dollar hitting a six-week high against the yen, while investors waited for a U.S. jobs report that could pave the way for a rate hike as early as next week. The Nikkei added 1.5 percent to 19,604.61, the highest closing level since Dec. 7, 2015.