Keyword Analysis & Research: what year were zip codes introduced

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what year were zip codes introduced	1.01	0.9	4916	71	35
what	0.71	0.3	2234	14	4
year	0.38	0.5	2837	81	4
were	0.19	0.9	7081	2	4
zip	0.01	0.5	1975	28	3
codes	0.83	0.5	9720	63	5
introduced	1.42	0.2	5162	55	10

Keyword	CPC	PCC	Volume	Score
what year were zip codes introduced	1.78	0.8	6472	74
in what year were zip codes first introduced	1.5	0.9	4008	47