| By-products | Year | |
| 1998* | 2004 | |
| Food waste | 40.88 | 35.88 |
| Baby diaper | 13.78 | 16.62 |
| Hard vegetal fibre | 0.3 | 7.99 |
| Garden waste | 0.0 | 4.49 |
| Toilet paper | ND | 4.68 |
| Low density polyethylene | 5.22 | 6.01 |
| Cardboard | 2.65 | 3.07 |
| Paper | 5.49 | 3.01 |
| Dust | 12.42 | 2.93 |
| Transparent glass | 3.83 | 2.30 |
| Plastic | 3.57 | 1.83 |
| Non-separable material | 0.0 | 1.80 |
| Rag | 4.1 | 1.17 |
| Synthetic fibre | 0.28 | 0.61 |
| Snack packing | 0.0 | 0.61 |
| Shoes | 0.0 | 0.61 |
| Wood | 1.76 | 0.59 |
| Ferrous material | 1.65 | 0.56 |
| Tetra pack | 0.20 | 0.46 |
| Othersa | 3.82 | 5.55 |
| Total | 100 | 100 |