Algeria ; Sprachenzählung; Demography (linguistics) ; Language census ; Instruction (medium of) ; Medium of instruction ; Academic language; Scientific language ; Language situation ; English as international medium ; French as international medium ; Africa (English language in) ; Afrika (engl. Sprache in) ; English in Africa ; Afrika (fr. Sprache in) ; Africa (French language in) ; French in Africa ; Amazigh; Masirisch; Tamazight; Tamaschekisch; Tamajaq; Tamashek ; Arabic