| Country name | Excellent quality | Good quality | Sufficient quality | Poor quality | Quality classification not possible |
|---|---|---|---|---|---|
| Luxembourg | 100.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Cyprus | 99.1 | 0.0 | 0.0 | 0.0 | 0.9 |
| Malta | 98.9 | 1.1 | 0.0 | 0.0 | 0.0 |
| Greece | 97.0 | 0.6 | 0.1 | 0.0 | 2.3 |
| Austria | 95.1 | 4.2 | 0.8 | 0.0 | 0.0 |
| Croatia | 94.1 | 1.7 | 0.4 | 0.0 | 3.8 |
| Italy | 90.8 | 4.9 | 1.5 | 1.8 | 1.0 |
| Germany | 90.7 | 5.7 | 1.3 | 0.2 | 2.1 |
| EU | 85.5 | 8.4 | 2.4 | 1.4 | 2.3 |
| Portugal | 85.1 | 9.7 | 2.2 | 0.7 | 2.2 |
| Denmark | 85.9 | 8.0 | 2.9 | 1.0 | 2.2 |
| Spain | 84.6 | 8.8 | 3.2 | 1.8 | 1.6 |
| Belgium | 85.0 | 12.4 | 1.8 | 0.9 | 0.0 |
| Finland | 83.4 | 9.3 | 2.3 | 0.7 | 4.3 |
| Latvia | 82.1 | 8.9 | 1.8 | 0.0 | 7.1 |
| Lithuania | 85.1 | 8.8 | 2.6 | 0.0 | 3.5 |
| Czech Republic | 82.5 | 8.4 | 1.3 | 0.6 | 7.1 |
| France | 76.8 | 14.4 | 4.1 | 2.4 | 2.3 |
| Netherlands | 74.8 | 16.2 | 3.8 | 2.6 | 2.6 |
| Slovenia | 74.5 | 17.0 | 8.5 | 0.0 | 0.0 |
| Ireland | 72.9 | 12.9 | 7.1 | 4.3 | 2.9 |
| Sweden | 71.8 | 13.3 | 3.8 | 1.4 | 9.7 |
| Romania | 70.0 | 30.0 | 0.0 | 0.0 | 0.0 |
| Estonia | 66.7 | 16.7 | 11.1 | 0.0 | 5.6 |
| Hungary | 70.8 | 11.5 | 1.2 | 1.6 | 15.0 |
| Bulgaria | 64.9 | 28.7 | 5.3 | 1.1 | 0.0 |
| United Kingdom | 65.1 | 24.9 | 6.5 | 3.2 | 0.3 |
| Poland | 66.2 | 15.9 | 8.0 | 0.5 | 9.5 |
| Switzerland | 60.6 | 2.2 | 0.9 | 1.3 | 35.1 |
| Slovakia | 63.6 | 24.2 | 0.0 | 3.0 | 9.1 |
| Albania | 37.0 | 23.9 | 5.4 | 14.1 | 19.6 |