Edition: Singapore Indonesia Asia US/UK TOKYO: A leading indicator of Japan's service-sector inflation hit 3.3 per cent in May, data showed on Wednesday (Jun 25), keeping alive expectations of further interest rate hikes by the central bank. Service-sector inflation is being closely watched by the Bank of Japan for clues on whether prospects of sustained wage gains will prod firms to continue raising prices, and keep inflation sustainably around its 2 per cent target. The May year-on-year gain