Sources: AC Neilson; Census, Statistics New Zealand; New Zealand Tobacco Use Survey, Ministry of Health; New Zealand Health Survey, Ministry of Health; Year 10 Snapshot Survey, Action on Smoking and Health.
Notes:
- From July 1989 to March 1996 data were collected from people 16 years and above. Adjustments have been made to estimate the expected proportion of smokers among 15-year-olds by using the results from the older age group.
- In 2003 data were collected from people aged 18 years and above. Adjustments have been made to estimate the expected proportion of smokers among 15–17-year-olds by using the results from the older age group.
- Annual AC Nielsen NZ Ltd estimates have been calculated from the average of the quarterly results until 1999. From 2000 annual estimates are derived from the years’ pooled data.
- The proportion of current smokers aged 15+ in 2008 has been estimated using the NZTUS 2008 data for 15- to 64-year-olds and an estimate (adjusted for gender and ethnic group) based on the 2006/07 New Zealand Health Survey (Ministry of Health 2008a) for those aged 65+.
- 2009, 2010 and 2012 datapoints are estimated as the mean of the previous and subsequent years.
- Since 2013 the proportion of current smokers aged 15+ has come from the NZHS.
