This is according to a poll conducted among Muslim youths by the daily Bild-Zeitung.
The respondents, Muslims with an average age of 15, were surveyed in the German state of Lower Saxony.
They were high school students and fluent in the German language and none of them was among the refugees who have recently arrived in the country.
Answering other questions of the poll, more than 45 percent said an Islamic government is the best form of ruling a country.
Some 31 percent of respondents said it was ok to use violence to confront those in the West who threaten Muslims.
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Germany has a population of 84 million, some 5.3 million of whom are followers of Islam.
Germany has the largest population of Muslims in Western Europe after France.
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