 Its official language is Norwegian, but English is used in all tuition and 68% of its 690 students originate from outside Norway (in 2015, foreign students came from 43 countries).Of the international students, the largest groups were from Nordic countries outside Norway (12%), Germany (11%), the Netherlands (9%), the United Kingdom (6%), and Russia (6%).The tuition is free of charge and is carried out by 27 full-time professors, 43 adjunct professors and 160 guest lecturers.