Note 1: SOSIC results are calculated from rebased population estimates and exclude missing values.

Sources: 1999-2004 - Canadian Tobacco Use Monitoring Survey, Annual Results;
1994/95-1998/99 - National Population Health Survey;
May 1994 - Survey on Smoking in Canada (SOSIC); 1985/91 - General Social Surveys

* Note that this number should not be rounded up to 23%