| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] than the previous year | 18 |
|
| 2 | [adj] than the previous year | 18 |
|
| 3 | [adj -er] than the previous year | 12 |
|
| 4 | [det] than the previous year | 6 |
|
| 5 | low than the previous year | 6 |
|
| 6 | lower than the previous year | 6 |
|
