Keyword Analysis & Research: when was the rolodex invented

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when was the rolodex invented	0.57	0.2	9794	99	29
when	1.32	0.8	2629	21	4
was	0.55	0.5	1851	98	3
the	0.75	0.4	2147	92	3
rolodex	0.05	0.4	5316	63	7
invented	1.79	0.6	9731	77	8

Keyword	CPC	PCC	Volume	Score
when was the rolodex invented	0.45	0.3	5322	64