The provided reference doesn't directly state how many 15-year-olds specifically smoke. However, it indicates that in 2021, 12% (with a confidence interval of 10-13%) of 11-15 year old pupils had ever smoked. This figure represents the lowest level ever recorded by the survey and reflects a continuing decline since 1996.
It is important to note:
- "Ever smoked" does not necessarily mean current smoking habits. It includes those who have tried smoking even once.
- The data includes an age range (11-15), making it impossible to isolate the percentage for 15-year-olds alone from this information.
- The study is from 2021; current numbers could be different.
To determine the exact number of 15-year-olds who currently smoke, you would need more specific data focusing on that age group's current smoking habits. Without that information, it's only possible to state that 12% of those aged 11-15 had tried smoking in 2021 according to this specific survey.