Table 3. First and second median formant values of six vowels at ten measurement points

Formant	Vowel	1	2	3	4	5	6	7	8	9	10
F1	i	404	404	409	410	414	431	427	420	412	394
	I	436	439	453	459	461	474	483	469	474	456
	u	435	439	439	428	417	404	392	388	387	377
	Ʊ	447	458	454	447	432	419	407	403	400	390
	ɛ	686	763	804	827	836	843	834	797	794	757
	æ	693	792	829	857	867	875	871	834	839	772
F2	i	2,644	2,741	2,786	2,772	2,739	2,711	2,583	2,563	2,555	2,457
	I	2,496	2,571	2,599	2,550	2,439	2,345	2,282	2,223	2,210	2,157
	u	1,322	1,256	1,244	1,223	1,196	1,185	1,156	1,140	1,176	1,318
	Ʊ	1,331	1,317	1,306	1,237	1,231	1,210	1,204	1,248	1,293	1,428
	ɛ	1,950	1,973	1,985	1,974	1,963	1,965	1,959	1,967	1,961	1,959
	æ	1,953	1,973	1,965	1,959	1,958	1,966	1,960	1,946	1,932	1,927