BERLIN, Sept 6 (Reuters) - German industrial orders unexpectedly surged in July, official figures showed on Monday, hitting their highest level since the data time series began in 1991 and pointing to a solid start to the second half in Europe’s largest economy. The figures published by the Federal Statistics Office showed orders for goods ‘Made in Germany’ rose by 3.4% on the month in seasonally adjusted terms. A Reuters poll of analysts had pointed to a fall of 1.0% on the month. Writing by Paul Carrel, editing by Kirsti Knolle Our Standards: The Thomson Reuters Trust Principles.