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Table 41b. Age of onset for various substances and mixing alcohol with pills. Proportion answering 'at the age of 13 or younger' by gender. 2015. Percentages.

Table 41b. Age of onset for various substances and mixing alcohol with pills. Proportion answering 'at the age of 13 or younger' by gender. 2015. Percentages.

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a 'Without a doctor's prescription'.
b In order to 'get high'.
c Used by end of 8th grade, approximate age is 13 (amphetamines only, cocaine only, tranquillisers only).