when did ufo sightings begin

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when did ufo sightings begin	1.09	0.4	454	92	28
when	0.72	0.7	6560	36	4
did	1.34	0.2	3018	84	3
ufo	0.9	0.1	8906	18	3
sightings	0.36	0.1	7305	99	9
begin	1.86	1	3865	59	5

Keyword	CPC	PCC	Volume	Score
when did ufo sightings begin	0.58	0.3	2788	98
when was the first ufo seen	1.62	0.5	5731	77
when was the first recorded ufo sighting	0.19	0.4	4590	6
history channel ufo sightings	0.54	0.2	360	42
when was the first ufo reported	1.62	0.3	8450	35
first reported ufo sighting	1.31	0.9	8502	32
the first ufo sighting	1.28	0.3	8483	18
the earliest ufo sighting recorded	0.25	0.4	1001	81
when was the first ufo ever to be seen	0.87	0.3	6971	76
first ufo sighting in usa	1.08	0.3	1271	7
earliest photo of ufo	1.45	0.4	8236	67