 <translate> Passage: In the education systems of England, Northern Ireland, Wales and some other Commonwealth countries, sixth form (sometimes referred to as Key Stage 5) represents the final 1-3 years of secondary education (high school), where students (typically between 16 and 18 years of age) prepare for their A-level (or equivalent) examinations.

Question: Based on this passage, how old are you when you finish sixth form?
typically between 16 and 18 years of age <yor> Passage: Nínú ètò ẹ̀kọ́ ní England, Northern Ireland, Wales àti àwọn orílẹ̀-èdè Commonwealth mìíràn, ìdánilẹ́kọ̀ọ́ kẹfà (tí a máa ń pè ní Key Stage 5) dúró fún ọdún 1-3 tó kẹ́yìn nínú ẹ̀kọ́ girama (high school), níbi tí àwọn akẹ́kọ̀ọ́ (tí ó sábà máa ń wà láàárín ọdún 16 àti 18) ti ń múra sílẹ̀ fún ìdánwò A-level (tàbí èyí tó bá a dọ́gba).  Ìbéèrè: Níbàámu pẹ̀lú ohun tó wà nínú ẹsẹ Bíbélì yìí, ọmọ ọdún mélòó lo máa jẹ́ tó o bá parí ilé ẹ̀kọ́ girama? àwọn ọmọdé tí wọ́n sábà máa ń wà láàárín ọmọ ọdún mẹ́rìndínlógún sí méjìdínlógún 