Keyword Analysis & Research: can we use wikipedia as reference

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
can we use wikipedia as reference	1.83	0.4	206	91	33
can	1.7	0.3	3547	18	3
we	1.6	0.1	8334	1	2
use	1.19	0.5	5596	55	3
wikipedia	1.39	0.4	8900	21	9
as	1.41	0.1	4273	15	2
reference	0.58	0.3	5009	9	9

Keyword	CPC	PCC	Volume	Score
can we use wikipedia as reference	1.29	0.5	413	89