Keyword Analysis & Research: is it okay to use to whom it may concern

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
is it okay to use to whom it may concern	0.21	0.2	5183	48	40
is	1.74	0.9	3314	17	2
it	0.53	0.9	4641	68	2
okay	0.71	0.7	292	49	4
to	0.02	0.6	9279	89	2
use	0.27	0.2	8210	58	3
to	1.2	0.7	9945	98	2
whom	0.67	0.4	7910	96	4
it	0.52	0.9	3579	47	2
may	1.19	0.9	7396	83	3
concern	1.87	0.2	7410	28	7

Keyword	CPC	PCC	Volume	Score
is it okay to use to whom it may concern	1.05	0.9	5301	31