| GAIS: | 4 months | 8 months | 12 months |
| Very strongly improved | 8% | 5% | 0% |
| Strongly improved | 18% | 9% | 2% |
| Improved | 70% | 74% | 59% |
| No improvement | 4% | 12% | 38% |
| Worse | 0% | 0% | 0% |