Amazon says 2016 holiday season 'best-ever'

(Reuters) - Amazon.com Inc said it had its best-ever holiday season, shipping more than one billion items worldwide through its Prime membership program. The company said on Tuesday more than 72 percent of its customers worldwide shopped through mobile devices, adding that Dec. 19 was the busiest shopping day this holiday season. The Amazon Echo home assistant and its smaller version, Echo Dot, were best sellers, said Jeff Wilke, chief executive of Amazon's Worldwide Consumer division. "Despite