| Category |
| % |
|
|
|
| Summer | Autumn | Winter | Average |
| Food | 11.3 | 11.1 | 11.4 | 11.3 |
| Vegetables | 8.3 | 8.8 | 8.7 | 8.6 |
| Bones | 3.6 | 3.2 | 5 | 4 |
| Fruits skin | 8.4 | 4.5 | 6.1 | 6.3 |
| Bread litter | 4.7 | 4.5 | 5 | 4.7 |
| Paper | 15.3 | 16.5 | 14.1 | 15.3 |
| Textiles | 11.5 | 10.3 | 12.8 | 11.5 |
| Plastic | 18.6 | 18.6 | 19.6 | 18.9 |
| Glass | 3.5 | 5.8 | 3.5 | 4.3 |
| Metals | 6.7 | 7.8 | 5.8 | 6.8 |
| others | 8 | 9.1 | 7.9 | 8.3 |
| total | 100 | 100 | 100 | 100 |