Coefficient of variation.
| Appraisal method | Pin oak (Quercus palustris) | American elm (Ulmus americana) | Linden (Tilia spp.) | Kentucky coffeetree (Gymnocladus dioica) | European beech (Fagus sylvatica) | European ash (Fraxinus excelsior) |
|---|---|---|---|---|---|---|
| CTLA | 37 | 36 | 31 | 29 | 38 | 49 |
| Helliwell | 84 | 108 | 109 | 157 | 98 | 85 |
| STEM | 13 | 11 | 15 | 26 | 18 | 12 |
| Burnley | 49 | 42 | 37 | 22 | 48 | 58 |
| Norma Granada | 27 | 38 | 29 | 29 | 28 | 51 |