| Vowels | Kind | Gender | F1 ROC | F2 ROC |
| Mean (SD) | Mean (SD) | |||
| /?i/ | W | M | −725.67 (334.276) | 3834.51 (704.788) |
| F | −793.55 (590.627) | 2783.84 (1226.402) | ||
| S | M | −538.29 (628.415) | 5151.90 (1346.831) | |
| F | −639.32 (406.704) | 3806.61 (1787.240) | ||
| /au/ | W | M | −570.62 (382.755) | −695.77 (1191.267) |
| F | −756.69 (296.998) | −747.07 (1024.648) | ||
| S | M | −871.87 (1012.705) | 867.59 (3221.259) | |
| F | −670.13 (663.312) | 1236.26 (2706.631) | ||
| /ei/ | W | M | −688.37 (295.675) | 1450.09 (526.517) |
| F | −661.48 (379.282) | 290.92 (1664.918) | ||
| S | M | ------- | ------- | |
| F | ------- | ------- | ||
| /?u/ | W | M | −530.96 (273.513) | −971.18 (1027.409) |
| F | −726.04 (278.501) | −1294.90 (459.626) | ||
| S | M | −558.10 (559.541) | −106.22 (2369.355) | |
| F | −620.17 (310.266) | −610.40 (580/289) |