| Data collection period | Given name | Stages of intervention |
|---|---|---|
| 01/01/2012 to 31/03/2012 | Wave 1 | Pre intervention period |
| 01 /04/2012 to 30/06/2012 | Wave 2 | Pre intervention period |
| 01/07/2012 to 30/9/2012 | Wave 3 | Pre intervention period |
| 01/10/2012 to 31/12/2012 | Wave 4 | Intervention period |
| 01/01/2013 to 31/03/2013 | Wave 5 | Intervention period |
| 01 /04/2013 to 30/06/2013 | Wave 6 | Intervention period |
| 01/07/2013 to 30/9/2013 | Wave 7 | Intervention period |
| 01/10/2013 to 31/02/2013 | Wave 8 | Intervention period |
| 01/01/2014 to 31/03/2014 | Wave 9 | Post intervention period |
| 01 /04/2014 to 30/06/2014 | Wave 10 | Post intervention period |
| 01/07/2014 to 30/9/2014 | Wave 11 | Post intervention period |
| 01/10/2014 to 31/02/2014 | Wave 12 | Post intervention period |