Keyword Analysis & Research: should i use the oxford comma

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
should i use the oxford comma	1.33	1	4921	66	29
should	0.68	0.9	9505	95	6
i	1.31	0.6	5529	20	1
use	1.23	1	3165	84	3
the	1.88	0.1	1057	48	3
oxford	1.71	0.6	3738	55	6
comma	1.77	1	7786	48	5

Keyword	CPC	PCC	Volume	Score
should i use the oxford comma	0.45	0.8	277	34
should you use the oxford comma	0.89	0.5	2381	4
should writers use the oxford comma	1.04	0.6	1286	66
when should you use an oxford comma	0.13	0.2	9969	64
should i use oxford comma on resume	1.13	0.2	3749	16