Keyword Analysis & Research: when was the nyc subway system built

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when was the nyc subway system built	1.9	0.4	4995	43	36
when	1.28	0.7	2089	96	4
was	1.21	0.4	8950	7	3
the	0.36	0.4	3374	70	3
nyc	1.27	1	8407	19	3
subway	0.16	0.9	5968	43	6
system	1.51	0.3	457	76	6
built	0.54	0.4	9371	68	5

Keyword	CPC	PCC	Volume	Score
when was the nyc subway system built	1.48	0.2	9923	87
who built the nyc subway system	1.98	1	4872	61
history of the nyc subway system	1.24	1	2248	30
history of the new york subway system	1.01	0.8	2120	84
when did nyc subway open	1.97	0.2	9150	26
history of new york city subway system	1.97	0.4	8164	53
new york subway built	1.35	0.5	113	54
when was the nyc subway built	1.27	0.1	8826	28
when was new york subway system built	0.13	0.6	6834	12