| Category | 2010 | 2021 |
|---|---|---|
| Single weighted score | 3.39 | 3.39 |
| Water use | 0.31 | 0.37 |
| Resource use, mineral and metals | 1.86 | 1.92 |
| Resource use, fossil | 3.35 | 3.11 |
| Photochemical ozone formation | 0.42 | 0.4 |
| Particulate matter | 9.84 | 9.96 |
| Ozone depletion | 0.04 | 0.04 |
| Land use | 0.28 | 0.31 |
| Ionising radiation | 0.01 | 0.01 |
| Human toxicity, non-cancer | 0.22 | 0.23 |
| Human toxicity, cancer | 0.05 | 0.05 |
| Eutrophication, terrestrial | 0.3 | 0.32 |
| Eutrophication, marine | 0.84 | 0.91 |
| Eutrophication, freshwater | 0.68 | 0.69 |
| Ecotoxicity, freshwater | 9.02 | 9.88 |
| Climate change | 8.31 | 8.18 |
| Acidification | 0.5 | 0.54 |