hearing aids invented

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
hearing aids invented	0.97	0.4	1307	9	21
hearing	0.07	0.2	7862	31	7
aids	1.22	0.6	3502	78	4
invented	1.47	0.4	102	81	8

Keyword	CPC	PCC	Volume	Score
hearing aids invented	0.99	0.3	1999	61
hearing aid invented in 1957	1.05	0.2	6088	1
hearing aids inventor	1.99	0.4	7218	22
invented the hearing aid	1.57	0.1	9700	34
when were hearing aids invented	0.89	0.1	4307	83
who invented hearing aids	1.34	0.2	8795	55
when was hearing aids invented	1.63	0.1	6834	100
why were hearing aids invented	1.09	0.9	8151	50
what year were hearing aids invented	0.73	0.1	3974	34
where were hearing aids invented	0.87	0.1	1153	38