| very | 4 | degree |
| significantly | 3 | degree |
| in early 1990s | 3 | temporal |
| rate → fall → low | 7 |
| rate → drop → low | 6 |
| rate → fall to → low levels | 6 |
| negative | neutral | positive |
| 0.180 | 0.680 | 0.139 |
| Raw frequency | 19 |
| Normalized frequency | 0.259 |
| Modifier score | 0.500 |
| Perplexity | 253.038 |