| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [prep] an average [adj] per | 6 |
|
| 2 | [vb pp] [prep] an average [adj] per | 5 |
|
| 3 | [prep] an average [prep] [adj] per | 58 |
|
| 4 | [prep] an average of [adj] per | 58 |
|
| 5 | [prep] an average of [adj] per | 58 |
|
| 6 | [prep] an average [prep] [adj] per | 58 |
|
| 7 | [prep] an average [adj] per cent | 10 |
|
| 8 | [prep] an average [adj] per cent | 10 |
|
| 9 | [prep] an average [adj] per [unc] | 10 |
|
| 10 | [prep] an average [adj] per [no cls] | 10 |
|
