Here's an attempt to quantify the information, using HTTP language negotation formalism:
Accept-Language: fi;q=1, en;q=0.9, sv-FI;q=0.75, sv-SE;q=0.65,
de;q=0.45, ru;q=0.35, la;q=0.3, es;q=0.2, it;q=0.18, fr;q=0.08 el;q=0.05
Apart from Finnish, English, Swedish and German, my language skills are based on self-study, not studies at school or university.
Jukka Korpela