Keyword Analysis & Research: when was the electric hearing aid invented

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when was the electric hearing aid invented	0.21	0.9	3941	93	42
when	0.76	1	907	13	4
was	1.5	0.6	631	6	3
the	1.49	0.9	1715	40	3
electric	0.42	0.5	9207	14	8
hearing	0.89	0.2	6577	59	7
aid	1.7	0.7	4484	51	3
invented	0.27	0.6	275	21	8

Keyword	CPC	PCC	Volume	Score
when was the electric hearing aid invented	0.4	0.9	5119	30