020406080100120140160180 JanFebMarAprMayJunJulAugSepOktNovDec Amount of lessons given Sick days taken 020406080100120140160180 JanFebMarAprMayJunJulAugSepOktNovDec Amount of lessons given Sick days taken 020406080100120140160180 JanFebMarAprMayJunJulAugSepOktNovDec Amount of lessons given Sick days taken