| Types | (a) | (b) | (c) | (d) | (e) | (f) | (g) | (h) |
|
| Sample | 18 | 18 | 54 | 49 | 44 | 39 | 20 | 65 | 307 |
| Cartesian (%) | 18 | 17 | 51 | 42 | 44 | 30 | 18 | 63 | 283 |
| 100 | 94.4 | 94.4 | 85.7 | 100 | 76.9 | 90.0 | 96.9 | 92.2 | |
| Polar (%) | 16 | 16 | 47 | 39 | 40 | 28 | 17 | 58 | 261 |
| 88.9 | 88.9 | 87.0 | 79.6 | 90.9 | 71.8 | 85.0 | 89.2 | 85.0 |