What proportion of Australian school students aged 12-17 years use e-cigarettes (or vapes) regularly?

In 2022/23, 16% of Australian secondary school students aged 12-17 years had vaped at all in the past month. Regular vaping (defined as vaping at least 20 days out of the past month) was reported by 5%, and a further 3% vaped every day during the past month.