We might be mistaken in using the gross domestic product per inhabitant as the sole indicator.
1	We	we	PRON	PE	Number=Plur|Person=1|PronType=Prs	4	nsubj:pass	_	_
2	might	may	AUX	VM	Mood=Ind|Person=3|Tense=Past|VerbForm=Fin	4	aux	_	_
3	be	be	AUX	VA	VerbForm=Inf	4	aux:pass	_	_
4	mistaken	mistake	VERB	V	Tense=Past|VerbForm=Part	0	root	_	_
5	in	in	ADP	E	_	6	mark	_	_
6	using	use	VERB	V	VerbForm=Ger	4	advcl	_	_
7	the	the	DET	RD	Definite=Def|PronType=Art	10	det	_	_
8	gross	gross	ADJ	A	Degree=Pos	10	amod	_	_
9	domestic	domestic	ADJ	A	Degree=Pos	10	amod	_	_
10	product	product	NOUN	S	Number=Sing	6	obj	_	_
11	per	per	ADP	E	_	12	case	_	_
12	inhabitant	inhabitant	NOUN	S	Number=Sing	10	nmod	_	_
13	as	as	ADP	E	_	16	case	_	_
14	the	the	DET	RD	Definite=Def|PronType=Art	16	det	_	_
15	sole	sole	ADJ	A	Degree=Pos	16	amod	_	_
16	indicator	indicator	NOUN	S	Number=Sing	6	obl	_	SpaceAfter=No
17	.	.	PUNCT	FS	_	4	punct	_	_
