. "Compulsory education, duration (years)" . . . . . . . . "9" . . . . . . "9" . . . . . . "9" . . . . . . "9" . . . . . . "9" . . . . . . "9" . . . . . . "9" . . . . . . "9" . . . . . . "9" . . . . . . "9" . . . . . . "9" . . . . . . "9" . . . . . . "9" . . . . . . "9" . . . . . . "9" . . . . . . "9" . . . . . . "9" . . . . .