;2018;2018;2018;2018;2018;2018;2018;2018; All pupils;Boys;Girls;Parents' educational attainment level;Parents' educational attainment level;Parents' educational attainment level;Parents' educational attainment level;Parents' educational attainment level; Basic school or no completed education;Upper secondary education;Tertiary education, 4 years or less;Tertiary education, more than 4 years;Unknown; ;;;;;;;;; Written English;3.7;3.5;3.9;3.2;3.4;3.9;4.2;3.1; Spoken English;4.5;4.4;4.7;4.0;4.3;4.7;5.0;4.0; Mathematics, written;3.6;3.6;3.7;2.8;3.2;3.9;4.4;2.8; Mathematics, oral;4.2;4.0;4.3;3.4;3.8;4.4;4.8;3.5; Natural sciences, oral;4.3;4.1;4.5;3.5;4.0;4.5;4.9;3.5; First choice form of Norwegian, written;3.5;3.2;3.8;3.0;3.2;3.7;4.0;2.7; Second choice form of Norwegian, written;3.4;3.1;3.7;2.9;3.2;3.5;3.8;3.1; Spoken Norwegian;4.5;4.2;4.8;3.8;4.2;4.7;5.0;3.8; Christianity, religion, philosophy and ethics, oral;4.4;4.2;4.7;3.8;4.1;4.6;5.0;3.9; Social sciences, oral;4.4;4.3;4.6;3.7;4.1;4.7;5.1;3.7;