The largest immigrant languages are Russian (1.5%), Estonian (0.9%), Arabic (0.6%), Somali (0.4%) and English (0.4%). English is studied by most pupils as a compulsory subject from the first grade (at seven years of age), formerly from the 3rd or 5th grade, in the comprehensive school (in some schools other languages can be chosen instead), as a result of which Finns' English language skills have been significantly strengthened over several decades. German, French, Spanish and Russian can be studied as second foreign languages from the fourth grade (at 10 years of age; some schools may offer other options).