German investor confidence has dropped for the sixth consecutive month, the ZEW Centre for European Economic Research reported on Tuesday. The economic indicator, which aims to predict economic developments six months in advance, fell from 33.1 points in May to 29.8 in June. It has dropped every month since December and is at its lowest since the end of 2012. Economic growth in Germany - the eurozone's biggest economy - has slowed in recent months after it was buoyed earlier this year by a mild winter. However, analysts agree that growth prospects for the rest of the year remain sound. "The June ZEW survey appears to be consistent with our view of robust underlying growth momentum at the current juncture but a more moderate pace of economic expansion in the second half of this year," dpa quoted Thomas Harjes of Barclays Bank as saying.