The highest = the best
| 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kyrgyzstan | 4.10 | |||||||||||||
| Armenia | 3.80 | 4.20 | 4.63 | 4.60 | 4.26 | 4.20 | 4.13 | 4.71 | 4.81 | 5.03 | 5.40 | 4.98 | 5.20 | |
| Bulgaria | 5.20 | 5.30 | 5.50 | 5.50 | 5.30 | 4.94 | 5.02 | 4.81 | 5.40 | 5.57 | 5.72 | 5.60 | 4.97 | 5.10 |
| Croatia | 4.90 | 5.30 | 5.17 | 5.20 | 4.87 | 4.94 | 4.75 | 5.17 | 5.16 | 5.23 | 5.40 | 4.92 | 5.20 | |
| Azerbaijan | 4.00 | 4.40 | 4.50 | 4.50 | 4.09 | 4.08 | 3.95 | 5.04 | 5.12 | 5.35 | 5.50 | 5.04 | 5.00 | |
| Bosnia and Herzegovina | 3.60 | 4.10 | 4.37 | 4.40 | 4.12 | 3.92 | 4.42 | 4.42 | 4.33 | 4.60 | 4.03 | 4.10 | ||
| Georgia | 3.70 | 4.10 | 4.23 | 4.20 | 4.25 | 4.60 | 4.71 | 5.14 | 5.25 | 5.24 | 5.30 | 4.67 | 4.90 | |
| Hungary | 6.50 | 6.40 | 6.27 | 6.30 | 6.10 | 5.83 | 5.67 | 5.99 | 6.10 | 6.22 | 6.25 | 6.00 | 5.42 | 5.30 |
| Montenegro | 4.50 | 5.20 | 5.10 | 5.10 | 4.54 | 4.55 | 4.19 | 4.65 | 4.82 | 4.95 | 5.30 | 5.05 | 4.90 | |
| Albania | 3.80 | 4.40 | 4.20 | 4.20 | 3.71 | 4.00 | 3.82 | 4.53 | 4.55 | 4.29 | 4.70 | 4.12 | 4.50 | |
| Romania | 5.40 | 5.50 | 5.33 | 5.30 | 5.30 | 5.29 | 5.45 | 5.04 | 5.81 | 6.03 | 5.88 | 6.00 | 5.48 | 5.80 |
| Slovakia | 6.40 | 6.30 | 6.27 | 6.30 | 6.20 | 5.87 | 6.02 | 6.40 | 6.27 | 6.39 | 6.37 | 6.10 | 5.68 | 5.80 |
| Serbia | 3.90 | 4.20 | 4.37 | 4.40 | 3.92 | 4.02 | 4.04 | 4.61 | 4.79 | 4.82 | 5.20 | 4.57 | 4.60 | |
| Ukraine | 4.10 | 4.00 | 4.23 | 4.20 | 4.30 | 3.93 | 3.93 | 3.42 | 4.28 | 4.43 | 4.47 | 4.50 | 3.98 | 3.80 |
| Republic of Moldova | 4.40 | 3.90 | 4.10 | 4.10 | 3.62 | 3.72 | 3.18 | 4.00 | 4.22 | 4.33 | 4.80 | 4.19 | 4.70 | |
| Poland | 5.50 | 6.20 | 6.17 | 6.20 | 6.10 | 5.90 | 5.95 | 6.25 | 6.09 | 6.00 | 5.66 | 5.50 | 5.41 | 5.40 |
| North Macedonia | 4.10 | 4.70 | 4.93 | 4.90 | 4.95 | 5.01 | 4.66 | 4.70 | 4.81 | 4.80 | 4.31 | 4.60 | ||
| Russian Federation | 4.30 | 4.60 | 4.53 | 4.50 | 4.80 | 4.55 | 4.58 | 4.04 | 4.89 | 4.99 | 5.00 | 5.10 | 4.47 | 3.80 |
| Czech Republic | 6.20 | 6.50 | 6.53 | 6.50 | 6.50 | 6.27 | 6.53 | 6.86 | 6.98 | 7.03 | 7.01 | 6.70 | 6.40 | 6.50 |
| Cyprus | 6.60 | 6.90 | 6.60 | 6.60 | 6.40 | 6.05 | 6.12 | 5.45 | 6.24 | 6.41 | 6.36 | 6.30 | 5.84 | 5.90 |
| United States of America | 7.90 | 7.50 | 7.57 | 7.60 | 7.70 | 7.61 | 7.74 | 8.07 | 8.12 | 8.20 | 8.05 | 8.00 | 7.57 | 7.50 |
| Belgium | 7.50 | 7.50 | 7.50 | 7.50 | 7.50 | 7.36 | 7.45 | 7.84 | 7.68 | 7.67 | 7.71 | 7.40 | 7.28 | 7.30 |
| Kazakhstan | 4.30 | 4.40 | 4.50 | 4.50 | 4.49 | 4.76 | 4.43 | 4.84 | 4.86 | 5.01 | 5.30 | 4.63 | 4.60 | |
| Latvia | 5.40 | 5.50 | 5.70 | 5.70 | 5.53 | 5.70 | 5.34 | 5.72 | 5.94 | 6.03 | 6.30 | 5.94 | 6.10 | |
| Estonia | 6.70 | 6.70 | 6.67 | 6.70 | 6.62 | 6.80 | 7.20 | 7.18 | 7.17 | 7.18 | 6.90 | 6.73 | ||
| Netherlands | 8.40 | 8.00 | 8.20 | 8.20 | 8.10 | 7.91 | 8.03 | 8.30 | 8.33 | 8.27 | 8.28 | 8.00 | 7.78 | 7.80 |
| Lithuania | 6.20 | 6.00 | 6.00 | 6.00 | 6.10 | 5.86 | 5.98 | 5.92 | 6.42 | 6.46 | 6.52 | 6.40 | 6.05 | 6.30 |
| Austria | 8.20 | 7.90 | 7.77 | 7.80 | 7.80 | 7.55 | 7.59 | 8.01 | 8.00 | 8.09 | 8.15 | 7.90 | 7.67 | 7.60 |
| Germany | 8.00 | 7.80 | 7.73 | 7.70 | 7.80 | 7.61 | 7.72 | 7.96 | 7.91 | 7.85 | 7.74 | 7.40 | 7.47 | 7.70 |
| Canada | 8.00 | 8.00 | 8.03 | 8.00 | 8.00 | 7.93 | 8.02 | 8.18 | 8.29 | 8.26 | 8.05 | 7.70 | 7.47 | 7.40 |
| Turkey | 5.20 | 5.30 | 5.53 | 5.50 | 5.60 | 5.26 | 5.20 | 4.93 | 5.28 | 5.26 | 5.40 | 5.40 | 4.56 | 4.30 |
| Denmark | 8.50 | 8.10 | 7.97 | 8.00 | 7.90 | 7.89 | 7.94 | 8.16 | 8.16 | 8.17 | 8.21 | 7.90 | 7.81 | 7.80 |
| Iceland | 7.80 | 7.20 | 7.20 | 7.20 | 7.20 | 7.04 | 7.21 | 7.70 | 7.62 | 7.57 | 7.62 | 7.40 | 7.08 | 7.10 |
| Luxembourg | 8.10 | 8.20 | 8.10 | 8.10 | 8.10 | 8.15 | 8.26 | 8.46 | 8.30 | 8.28 | 8.24 | 8.00 | 7.89 | 7.80 |
| Ireland | 8.00 | 7.60 | 7.50 | 7.50 | 7.50 | 7.43 | 7.58 | 7.87 | 7.66 | 7.61 | 7.53 | 7.30 | 7.20 | 7.40 |
| Norway | 8.30 | 8.20 | 8.30 | 8.30 | 8.30 | 8.23 | 8.25 | 8.53 | 8.45 | 8.28 | 8.25 | 8.00 | 7.80 | 7.70 |
| Spain | 6.80 | 6.50 | 6.47 | 6.50 | 6.30 | 5.73 | 5.85 | 6.42 | 6.52 | 6.45 | 6.60 | 6.60 | 6.25 | 6.40 |
| Sweden | 8.50 | 8.50 | 8.37 | 8.40 | 8.30 | 7.99 | 8.10 | 8.61 | 8.40 | 8.28 | 8.19 | 7.80 | 7.60 | 7.70 |
| Switzerland | 8.30 | 8.20 | 8.23 | 8.20 | 8.20 | 8.05 | 8.16 | 8.56 | 8.62 | 8.57 | 8.53 | 8.10 | 7.94 | 7.60 |
| United Kingdom | 7.80 | 7.70 | 7.77 | 7.80 | 7.80 | 7.69 | 7.76 | 8.13 | 8.14 | 8.04 | 7.68 | 7.50 | 7.30 | 7.50 |
| France | 7.20 | 7.30 | 7.30 | 7.30 | 7.30 | 7.21 | 7.26 | 7.34 | 7.18 | 7.38 | 7.21 | 7.00 | 6.78 | 7.00 |
| Malta | 6.60 | 6.80 | 7.00 | 7.00 | 7.00 | 6.72 | 6.73 | 6.88 | 6.73 | 6.76 | 6.64 | 6.30 | 5.78 | 6.10 |
| Portugal | 7.00 | 6.90 | 6.77 | 6.80 | 6.80 | 6.56 | 6.60 | 6.85 | 6.93 | 6.98 | 6.94 | 6.80 | 6.21 | 6.30 |
| Slovenia | 5.60 | 5.80 | 6.00 | 6.00 | 5.19 | 5.54 | 5.99 | 6.09 | 6.10 | 6.15 | 6.30 | 6.00 | 6.10 | |
| Italy | 6.00 | 6.00 | 6.10 | 6.10 | 6.00 | 5.59 | 5.66 | 5.98 | 5.99 | 6.13 | 6.15 | 6.10 | 5.66 | 6.00 |
| Finland | 8.60 | 8.50 | 8.60 | 8.60 | 8.50 | 8.33 | 8.38 | 8.63 | 8.69 | 8.71 | 8.65 | 8.10 | 8.17 | 8.10 |
| Greece | 5.90 | 5.80 | 5.40 | 5.40 | 5.30 | 5.28 | 5.36 | 5.39 | 5.27 | 5.21 | 5.23 | 5.30 | 4.81 | 5.10 |