| Figure 5 | Key | Correlation coefficients between | |
| sk |
| ||
| (a) | 10.402343 | 98.641976 |
|
| (b) | 10.398437 | 98.641976 |
|
| (a)-(b) |
|
| 0.999915 |
| (c)-(d) |
|
| 0.004622 |