How many Somalian immigrants are on welfare after 5 years? 10 years? What's the economic productivity of those Somalians -- not just the taxes paid, but the pro

How many Somalian immigrants are on welfare after 5 years? 10 years? What's the economic productivity of those Somalians -- not just the taxes paid, but the profit made by their employers? What's the cost of that welfare? How many citizens are on welfare in an average year? I think we could use more facts before coming to a conclusion.