As of 2008, the French national institute of statistics INSEE estimated that 11.8 million foreign-born immigrants and their direct descendants (limited to second-generation born in France) lived in France representing 19% of the countrys population. More than 5.5 million are of European origin and about 4 million of Maghrebis origin (20% of Algerian origin and 15% of Moroccan or Tunisian origin). Immigrants aged 18 to 50 count for 2.7 million (10% of population age 18–50) and 5 million for all ages (8% of population). The second-generation immigrants aged 18 to 50 make up 3.1 million (12% of 18–50) and 6.5 million for all ages (11% of population). Without considering citizenship at birth, people not born in metropolitan France and their direct descendants made up 30% of the population aged 18–50 in metropolitan France as of 2008.

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How many more million people are from European origin than Maghrebis origin?