| Location | Grade | ||||
| Grade A | Grade B | Grade C | Council of Europe Level B2 | Below Level B2 | |
| Albania | 10.1% | 11.8% | 33.6% | 19.3% | 25.2% |
| Algeria | 0.0% | 0.0% | 40.0% | 33.3% | 26.7% |
| Andorra | 10.0% | 6.7% | 66.7% | 16.7% | 0.0% |
| Argentina | 12.4% | 22.6% | 46.2% | 18.1% | 0.8% |
| Australia | 6.4% | 14.6% | 46.6% | 29.1% | 3.3% |
| Austria | 26.1% | 27.2% | 32.6% | 12.5% | 1.6% |
| Bahrain | 0.0% | 15.4% | 69.2% | 15.4% | 0.0% |
| Belarus | 20.0% | 28.0% | 42.0% | 8.0% | 2.0% |
| Belgium | 13.6% | 22.0% | 41.1% | 22.0% | 1.3% |
| Bolivia | 3.6% | 9.1% | 29.1% | 45.5% | 12.7% |
| Bosnia and Herzegovina | 3.6% | 20.5% | 46.4% | 25.9% | 3.6% |
| Brazil | 8.3% | 17.1% | 44.1% | 26.7% | 3.9% |
| Bulgaria | 17.3% | 25.1% | 38.8% | 16.7% | 2.1% |
| Cambodia | 0.0% | 6.7% | 33.3% | 33.3% | 26.7% |
| Canada | 6.0% | 15.0% | 49.7% | 27.1% | 2.2% |
| Chile | 10.2% | 17.7% | 37.5% | 28.7% | 5.9% |
| China | 6.1% | 9.1% | 30.3% | 36.1% | 18.5% |
| Colombia | 12.2% | 2.7% | 32.4% | 36.5% | 16.2% |
| Costa Rica | 4.0% | 12.0% | 52.0% | 32.0% | 0.0% |
| Croatia | 29.1% | 26.2% | 33.5% | 10.6% | 0.5% |
| Cuba | 0.0% | 0.0% | 80.0% | 0.0% | 20.0% |
| Cyprus | 0.0% | 33.3% | 44.4% | 22.2% | 0.0% |
| Czech Republic | 22.5% | 26.8% | 36.2% | 13.2% | 1.2% |
| Denmark | 20.5% | 27.5% | 40.9% | 9.1% | 2.0% |
| Dominican Republic | 13.0% | 4.3% | 34.8% | 26.1% | 21.7% |
| Ecuador | 8.7% | 15.2% | 33.6% | 36.5% | 6.1% |
| Egypt | 50.0% | 25.0% | 0.0% | 25.0% | 0.0% |
| Estonia | 29.4% | 26.0% | 33.7% | 10.1% | 0.9% |
| Fiji | 1.5% | 4.5% | 31.8% | 47.0% | 15.2% |
| Finland | 15.3% | 36.5% | 29.4% | 15.3% | 3.5% |
| France | 11.1% | 17.4% | 42.6% | 26.1% | 2.7% |
| Georgia | 7.8% | 25.5% | 33.3% | 23.5% | 9.8% |
| Germany | 18.0% | 23.3% | 40.0% | 17.1% | 1.7% |
| Greece | 6.9% | 17.1% | 46.1% | 27.4% | 2.5% |
| Guadeloupe | 7.1% | 10.7% | 39.3% | 27.7% | 15.2% |
| Hong Kong | 10.0% | 22.5% | 25.0% | 32.5% | 10.0% |
| Hungary | 14.6% | 25.3% | 44.1% | 14.0% | 2.0% |
| India | 11.5% | 13.1% | 24.2% | 31.0% | 20.2% |
| Indonesia | 3.3% | 15.6% | 36.1% | 38.5% | 6.6% |
| Iran | 2.9% | 5.7% | 31.4% | 54.3% | 5.7% |
| Ireland | 7.1% | 12.5% | 43.7% | 32.4% | 4.2% |
| Italy | 11.0% | 20.0% | 45.0% | 21.7% | 2.3% |
| Japan | 2.6% | 7.7% | 26.9% | 52.6% | 10.3% |
| Jordan | 5.9% | 11.8% | 29.4% | 47.1% | 5.9% |
| Korea (Republic of) | 12.1% | 18.2% | 36.4% | 30.3% | 3.0% |
| Latvia | 4.2% | 29.2% | 29.2% | 33.3% | 4.2% |
| Lebanon | 10.9% | 19.7% | 42.9% | 25.9% | 0.7% |
| Lithuania | 24.1% | 13.0% | 46.3% | 16.7% | 0.0% |
| Luxembourg | 4.7% | 18.6% | 44.2% | 27.9% | 4.7% |
| Macedonia | 18.6% | 29.5% | 36.4% | 14.0% | 1.6% |
| Malaysia | 8.3% | 18.6% | 40.3% | 23.7% | 9.2% |
| Maldives | 4.2% | 14.9% | 45.6% | 34.0% | 1.3% |
| Malta | 6.7% | 18.0% | 43.8% | 27.0% | 4.5% |
| Mexico | 5.4% | 13.8% | 42.0% | 32.9% | 5.8% |
| Moldova | 7.4% | 16.0% | 44.4% | 27.2% | 4.9% |
| Montenegro | 12.5% | 25.0% | 43.8% | 18.8% | 0.0% |
| Morocco | 8.4% | 10.8% | 27.7% | 34.9% | 18.1% |
| Nepal | 20.0% | 0.0% | 20.0% | 60.0% | 0.0% |
| Netherlands | 21.1% | 32.7% | 39.0% | 6.9% | 0.3% |
| New Caledonia | 8.3% | 16.7% | 41.7% | 33.3% | 0.0% |
| New Zealand | 8.4% | 21.2% | 50.1% | 19.8% | 0.6% |
| Pakistan | 4.0% | 5.1% | 24.2% | 43.4% | 23.2% |
| Panama | 10.0% | 10.0% | 20.0% | 35.0% | 25.0% |
| Paraguay | 2.2% | 28.9% | 37.8% | 26.7% | 4.4% |
| Peru | 6.0% | 13.9% | 42.6% | 33.0% | 4.5% |
| Philippines | 11.6% | 20.3% | 26.1% | 24.6% | 17.4% |
| Poland | 17.2% | 27.2% | 40.4% | 13.7% | 1.4% |
| Portugal | 15.7% | 29.1% | 44.0% | 10.7% | 0.5% |
| Romania | 20.8% | 24.4% | 39.4% | 13.9% | 1.5% |
| Russia | 13.8% | 19.7% | 39.4% | 23.0% | 4.1% |
| Serbia | 22.7% | 26.4% | 36.9% | 13.1% | 1.0% |
| Singapore | 11.8% | 0.0% | 47.1% | 35.3% | 5.9% |
| Slovak Republic | 14.0% | 21.7% | 44.8% | 18.1% | 1.4% |
| Slovenia | 37.1% | 27.1% | 28.8% | 5.3% | 1.8% |
| South Africa | 17.6% | 21.2% | 40.4% | 17.1% | 3.7% |
| Spain | 5.1% | 14.9% | 50.3% | 27.6% | 2.0% |
| Sri Lanka | 3.1% | 6.3% | 17.8% | 38.7% | 34.0% |
| Sweden | 23.0% | 24.9% | 37.5% | 12.6% | 2.0% |
| Switzerland | 11.5% | 19.8% | 43.1% | 23.9% | 1.8% |
| Taiwan | 0.0% | 9.7% | 29.0% | 51.6% | 9.7% |
| Thailand | 6.1% | 16.3% | 36.7% | 34.7% | 6.1% |
| Tunisia | 3.9% | 9.8% | 51.0% | 31.4% | 3.9% |
| Turkey | 1.6% | 7.8% | 17.2% | 23.4% | 50.0% |
| Ukraine | 12.5% | 24.8% | 38.9% | 20.1% | 3.8% |
| United Arab Emirates | 3.3% | 9.6% | 21.8% | 16.7% | 48.5% |
| United Kingdom | 8.6% | 16.7% | 44.0% | 27.4% | 3.3% |
| United States of America | 6.4% | 14.6% | 48.2% | 28.1% | 2.7% |
| Uruguay | 5.7% | 17.1% | 52.8% | 23.41% | 1.0% |
| Vietnam | 9.2% | 27.7% | 28.8% | 25.5% | 8.7% |
| Grand Total | 11.5% | 19.9% | 44.0% | 22.1% | 2.5% |