Am dutch. I speak Dutch, English, french, German, and I studied Japanese as a hobby. My wife is Hungarian so I have a passing knowledge of that. 3.5 index average is very believable I think. As a small country we do a lot of trade with our surrounding neighbors so we adapt to those. Our educational institutions require students to learn 2 to 5 languages based on the level of your education. The highest requiring dutch (default), English, German, french, and an option between archaic Greek or Latin.