| Table 1. | Average mathematics scale scores of fourth-grade students, by country: 2003 |
| Table 2. | Average science scale scores of fourth-grade students, by country: 2003 |
| Table 3. | Differences in average mathematics scale scores of fourth-grade students, by country: 1995 and 2003 |
| Table 4. | Differences in average science scale scores of fourth-grade students, by country: 1995 and 2003 |
| Table 5. | Average mathematics scale scores of eighth-grade students, by country: 2003 |
| Table 6. | Average science scale scores of eighth-grade students, by country: 2003 |
| Table 7. | Differences in average mathematics scale scores of eighth-grade students, by country: 1995, 1999, and 2003 |
| Table 8. | Differences in average science scale scores of eighth-grade students, by country: 1995, 1999, and 2003 |