Keyword Analysis & Research: which of these does not change

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
which of these does not change	1.92	0.7	3121	24	30
which	1.08	0.3	2820	27	5
of	0.09	0.9	1015	55	2
these	0.09	1	5334	95	5
does	0.3	0.7	5137	99	4
not	0.61	0.8	161	71	3
change	0.95	0.2	2927	47	6

Keyword	CPC	PCC	Volume	Score
which of these does not change	1.13	0.1	7291	75