260. A report published by AIHW in 2018 provided some disaggregated data for those aged 12–17 years. It showed an increasing proportion of children aged 12–17 are reporting alcohol abstinence. In 2004, 54.3% reported abstinence. This increased to 81.5% in 2016. 232 While in 2016, 9.1% of males and 6.8% of females aged 12–17 exceeded the adult guidelines for single occasion risk, this was a decrease from 2013 when 13.5% of males and 11.3% of females aged 12–17 exceeded these guidelines.233 261. AIHW also provided data on cigarette smoking. Between 2013 and 2016, the average age of smoking initiation increased from 15.9 years to 16.3 years. Females generally smoked their first full cigarette at a slightly younger age than males (16.0 years in 2016 compared with 16.6 years for males).234 262. The most recent data on illicit drugs for those under 18 years is provided by the 2014 Australian Secondary Students’ Alcohol and Drug survey, which showed cannabis as the most commonly used substance amongst those aged 12–17 years.235 Of those who had used cannabis, 5.1% were aged 12–13 years, 14.8% were 14–15 years and 28.2% were 16–17 years. 263. The Australian Child and Adolescent Survey of Mental Health and Wellbeing showed that in 2013–2014, 45% of young people with major depressive disorder had used cannabis or other drugs.236 264. Data gaps relating to drug and substance abuse should be considered as part of the national children’s data framework referred to in Recommendation 10 above. 8 Education, leisure and cultural activities 8.1 Early childhood education and care 265. Every three years, Australia conducts an Early Development Census. The most recent data in 2015 shows that one in five Australian children start school developmentally vulnerable.237 Most affected groups are Aboriginal and Torres Strait Islander children (42.1%), children living in very remote areas (47%), and children with language backgrounds other than English (27.8%). 238 This census was conducted again in 2018 and will be published in 2019. 266. The Australian Early Years Learning Framework states that ‘early childhood educators will reinforce in their daily practice the principles laid out in the United Nations Convention on the Rights of the Child’.239 45