| Division | Year | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | Total | Ratio (%) | |
| Pavement management | 3 | 1 | 2 | 3 | 1 | 1 | 1 | 2 | 3 | 3 | 20 | 3.4 |
| Drainage management | 1 | 2 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 6 | 1.0 |
| Convenience and rest facility management | 0 | 0 | 3 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 6 | 1.0 |
| Play and entertainment ยท exercise facilities management | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | 5 | 0.8 |
| Retaining wall and slope management | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 7 | 1.1 |
| Waterscape facility management | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 3 | 0.5 |
| Total | 8 | 5 | 6 | 4 | 2 | 3 | 2 | 5 | 6 | 6 | 47 | 7.8 |