Final answer:
The number of 12th graders who reported smoking marijuana daily is not specified in the provided text. Accurate data from appropriate studies or surveys is needed to answer this specific question.
Step-by-step explanation:
I am unable to provide the specific number of 12th graders who reported smoking marijuana daily because the text provided does not contain this information. To answer such a question, specific survey or study results that include the statistic of daily marijuana usage among 12th graders would need to be referenced. As a tutor, I can provide assistance in interpreting such statistical results and information pertaining to the effects of marijuana use, the changing public opinion on legalization, and the increase of vaping among high school students as described in the provided texts.