E-cigarette users – cutting down or cutting out smoking

Participants were asked about their use of e-cigarettes. More than two thirds have been able to stop smoking altogether and another 27 percent have reduced their smoking:
 
 
most believe they would revert to smoking, or increase their smoking, if they were not allowed to vape:
 
 
but almost no respondents have used e-cigarettes for anything other than conventional e-liquids: