| Unweighted | Weighteda | |
---|
| 1992 | 1994 | 1996 | 1998 | 1998 | 2000 | 2001 | 2002 | 2005 | 2006 original | 2006 revisedb | 2008 | 2008 updatedc | 2009 | 2010 |
Men
| 9.7 | 10.0 | 11.0 | 10.7 | 10.6 | 11.0 | 10.8 | 10.7 | 10.4 | 10.4 | 13.5 | 13.6 | 13.2 | 12.8 | 12.2 |
Women
| 2.7 | 3.2 | 3.5 | 3.3 | 3.2 | 3.5 | 3.6 | 3.8 | 3.5 | 3.5 | 5.1 | 4.9 | 4.7 | 4.7 | 4.7 |
- aIn 2000, the decision was made to weight the data to compensate for under-representation of people in some groups. This table shows weight and unweighted data for 1998 to give an indication of the effect of weighting. Caution should be exercised when comparing weighted data with unweighted data.
- bFigures produced using a revised methodology for converting volumes of alcohol to units assuming an average wine glass size. Two sets of data are included in the table for 2006; one is calculated using the original method and one with the improved method of calculating units.
- cFigures produced using an updated methodology including data on wine glass size.