Nikkei jumps to 2-1/2 week high on rosy U.S. data

By Thomas Wilson TOKYO(Reuters) - Japanese stocks rallied on Wednesday after Wall Street hit a record closing-high on the back of data pointing to rapid momentum in the U.S. economy, which boosted risk appetite and lent weight to last week's positive assessment by the Federal Reserve. The Nikkei benchmark gained 1.2 percent in thin trade to 17,854.23, its highest close since Dec. 8 and its fifth straight day of gains. Japanese markets were closed on Tuesday for a public holiday. Exporters p