Keyword Analysis & Research: what do the initials phd stand for

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what do the initials phd stand for	1.7	0.5	6623	79	34
what	1.65	0.8	80	66	4
do	0.2	0.9	1058	11	2
the	0.29	0.2	9748	68	3
initials	1.22	0.3	4565	81	8
phd	1.93	0.4	2370	62	3
stand	1.82	0.3	9151	46	5
for	0.54	0.8	3562	89	3

Keyword	CPC	PCC	Volume	Score
what do the initials phd stand for	1.46	0.5	9418	83