Keyword Analysis & Research: when was the first superhero comic book made

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when was the first superhero comic book made	0.96	0.9	984	94	44
when	1.84	0.6	5724	6	4
was	1.07	0.3	31	15	3
the	0.31	0.9	6172	97	3
first	0.1	0.6	6677	70	5
superhero	1.57	0.5	2277	60	9
comic	1.12	0.5	7813	97	5
book	1.62	0.6	1375	47	4
made	0.84	0.7	9116	73	4

Keyword	CPC	PCC	Volume	Score
when was the first superhero comic book made	1.36	0.9	809	78