| GEO/TIME | 2014 | 2015 | 2016 | 2017 | 2018 |
|---|---|---|---|---|---|
| European Union – 28 countries | 75.56 | 76.39 | 75.29 | 76.47 | : |
| Ireland | 0 | 0 | 0 | 0 | 0 |
| United Kingdom * | 0 | 0 | 0 | 0 | 0 |
| Austria | 0 | 0 | 0 | 0 | 0 |
| Belgium | 0 | 0 | 0 | 0 | 0 |
| Bulgaria | 2.86 | 3.21 | 4.74 | 4.82 | 4.32 |
| Croatia | 0.69 | 0.61 | 0.68 | 0.68 | 0.97 |
| Cyprus | 0.6 | 0.53 | 0.47 | 0.44 | 0.43 |
| Czech Republic | 0 | 0 | 0 | 0 | 0 |
| Denmark | 0 | 0 | 0 | 0 | 0 |
| Estonia | 0 | 0 | 0 | 0 | 0 |
| France | 0.8 | 0.89 | 0.91 | 0.93 | 0.94 |
| Germany | 0 | 0 | 0 | 0 | 0 |
| Greece | 12.54 | 11.41 | 10.76 | 11.13 | 9.62 |
| Hungary | 6.12 | 6.02 | 5.41 | 5.27 | 5.09 |
| Italy | 11.42 | 11.58 | 12.01 | 12.84 | : |
| Latvia | 0 | 0 | 0 | 0 | 0 |
| Lithuania | 0 | 0 | 0 | 0 | 0 |
| Luxembourg | 0 | 0 | 0 | 0 | 0 |
| Malta | 0 | 0 | 0 | 0 | 0 |
| Netherlands | 0 | 0 | 0 | 0 | 0 |
| Poland | 0 | 0 | 0 | 0 | 0 |
| Portugal | 0.87 | 1.05 | 1.11 | 1.11 | 0.93 |
| Romania | 21.55 | 21.81 | 19.9 | 19.09 | 17.8 |
| Slovakia | 0.15 | 0.12 | 0.14 | 0.12 | 0.06 |
| Slovenia | 0 | 0.03 | 0.02 | 0.01 | 0.01 |
| Spain | 17.95 | 19.15 | 19.16 | 20.03 | 20.4 |
Data not available.
Statistics are not available for Northern Ireland, but it will be a proportion of UK total.