Britain's top share index edged lower on Thursday, pegged backed by globally exposed stocks sensitive to optimism on the economy, hemming the FTSE into its recent range, Reuters reported. Miners fell 1.5 percent and accounted for 6 of the top 10 fallers on the FTSE 100, near a three month low. Evaporating confidence in the strength of global growth has dented the FTSE 100's performance so far year to date, which unlike the U.S. S&P 500 has been unable to make new all time highs. The heavily weighted mining sectors is down 1.1 percent in 2014. In all, the FTSE 100 was down 0.1 percent to 6,834.91 points, taking its yearly return so far to 1.2 percent, compared to a 6 percent gain for the French CAC and a 5.8 percent rise for the euro zone's EuroSTOXX 50. This has seen the FTSE 100 remain in a tight 130 point range that has persisted since the beginning of May, while other European indexes have pushed up to new multi-year highs, buoyed by stimulus from the European Central Bank. The index is down 0.4 percent this week, marking the third time it has failed to break out of the range in the last six weeks.