Table 1 Number of willingness-to-pay studies in each continent and country
Continent and number of studies | Country | Number of studies | Europe 26 studies (47%) | UK | 8 |
Asia 13 studies (23%) | KSA | 3 | Â | Italy | 5 |
| Â | Hong Kong | 3 | Â | Norway | 3 |
| Â | Iran | 2 | Â | Finland | 2 |
| Â | Thailand | 2 | Â | Bulgaria | 2 |
| Â | Singapore | 1 | Â | Croatia | 1 |
| Â | Â | Â | Â | Scotland | 1 |
| Â | India | 1 | Â | Switzerland | 1 |
| Â | Philippines | 1 | Â | Germany | 1 |
North America 11 studies (20%) | Canada | 8 | Â | Netherland | 1 |
| Â | USA | 3 | Â | Sweden | 1 |
Africa 2 studies (4%) | Kenya | 1 | Australia 1 study (2%) | Australia | 1 |
| Â | Tanzania | 1 | South America 2 studies (4%) | Brazil | 2 |