| Country | change (CH4 only) |
|---|---|
| United Kingdom | -57.6930303 |
| Germany | -55.57226417 |
| Bulgaria | -54.72486173 |
| Latvia | -54.55344271 |
| Romania | -48.00264814 |
| Lithuania | -47.03048255 |
| Estonia | -42.77848628 |
| Czech Republic | -42.55613587 |
| Netherlands | -40.64635159 |
| Austria | -35.43188033 |
| Belgium | -34.63590236 |
| Finland | -33.41284158 |
| Hungary | -33.14245673 |
| Sweden | -28.15331276 |
| Poland | -24.65420528 |
| Switzerland | -20.15004239 |
| Italy | -16.43758989 |
| Ireland | -14.95753155 |
| France | -13.32747526 |
| Norway | -12.57814152 |
| Denmark | -9.00318067 |
| Slovenia | -7.16602547 |
| Greece | -6.82532717 |
| Slovakia | -6.24527114 |
| Luxembourg | -5.31223594 |
| Croatia | 2.5991568 |
| Liechtenstein | 7.23409859 |
| Iceland | 9.38977452 |
| Portugal | 21.30619949 |
| Spain | 24.70582887 |
| Cyprus | 24.7638094 |
| Turkey | 72.70278437 |
| Malta | 83.68840424 |