In 2017, of all respondents who had tried to quit for at least 24 hours in the past year (i.e., 46.2%a of smokers and recent quitters), 12.3% were still quit at the time they were surveyed. This represents no significant change in quit success from 2015.73

While comparison from 1999 to 2017 is not possible due to changes in question coverage and availability of data,* since 2004, quit success appears to have remained around 10-13%, with some year-to-year fluctuation (Figure 6.19).

See data table below with 95% confidence intervals.

95% confidence intervals for in-text estimates 

a: 46.2 [41.1-51.3]