The CERA Wellbeing Survey supplemented the data collected by a range of agencies for the Canterbury Wellbeing Index. It gathered self-reported wellbeing data about quality of life, levels of stress, stressors, positive outcomes and Canterbury residents' perceptions of the recovery. With a unique sample of 2,500 residents each wave, the data could be broken down to demographic and geographic sub-populations, enabling analysis of recovery progress at more detailed levels. Six-monthly reports were made publically available from September 2012 to September 2015.