JOHANNESBURG (Reuters) - The central bank's monthly leading business cycle indicator crept up 0.1 percent in May, largely driven by increased job advertising space and a rise in residential building plans passed, a report showed on Tuesday. The South African Reserve Bank indicator collates data such as vehicle sales, job advertisements, business confidence and money supply to gauge the economic outlook. Indices: 2010 = 100 March April May Leading Indicator 99.5 99.5 99.6 12-mth percentage change -2.0 -1.5 -1.2 Coincident Indicator 117.3 118.3 -- 12-mth percentage change 3.3 3.7 -- Lagging Indicator 102.2 104.3 -- 12-mth percentage change -0.2 1.3 --