(based on public revenue from taxes as a percentage of gross domestic product):
1. Mexico – 17.5 percent
2. Chile – 18.2 percent
3. United States – 24.0 percent
4. Turkey – 24.6 percent
5. South Korea – 25.6 percent
6. Ireland – 27.8 percent
7. Slovak Republic – 29.3 percent
8. Greece – 29.4 percent
9. Switzerland – 30.3 percent
10. Spain – 30.7 percent
Source: Organization for Economic Cooperation and Development and World Bank