| Sample size <20 | Non- English language | Minimum eligibility (age in years) | ||||
---|---|---|---|---|---|---|---|
13 | 14 | 15 | 16 | 17 | |||
Austria | Â | Â | Â | 1 | Â | Â | 1 |
Belgium | 2 | Â | Â | Â | Â | 1 | Â |
Czech Republic | Â | Â | Â | Â | Â | Â | Â |
Finland | 2 | Â | Â | Â | Â | Â | Â |
France | 3 | Â | Â | Â | Â | Â | Â |
Germany | 4 | 1 | Â | 2 | Â | 4 | Â |
Italy | 3 | Â | Â | Â | Â | Â | 1 |
Spain | 1 | Â | Â | Â | Â | Â | Â |
Sweden | 3 | Â | Â | Â | Â | Â | Â |
Switzerland | 1 | Â | Â | Â | Â | 1 | Â |
The Netherlands | 3 | Â | Â | Â | Â | Â | Â |
Turkey | Â | Â | Â | Â | 1 | Â | Â |
Iran | Â | 2 | Â | Â | 1 | Â | Â |
Iraq | Â | Â | 1 | Â | Â | Â | Â |
Israel | 1 | Â | Â | Â | Â | Â | Â |
Egypt | Â | Â | Â | 1 | Â | Â | Â |
Brazil | 2 | 1 | Â | Â | 1 | Â | Â |
Uruguay | 1 | Â | Â | Â | Â | Â | Â |
China | Â | 6 | Â | Â | 1 | Â | 1 |
Japan | 3 | Â | Â | Â | Â | Â | Â |
Republic of Korea | 1 | 1 | Â | 1 | Â | 1 | Â |
Australia | 2 | Â | Â | Â | Â | Â | 1 |
New Zealand | 1 | Â | Â | Â | Â | 1 | Â |
USA/Canada | 22 | Â | Â | Â | Â | Â | Â |