Keyword Analysis & Research: when was contact tracing introduced

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when was contact tracing introduced	0.53	1	4280	75	35
when	0.5	0.7	1181	30	4
was	0.8	0.6	3525	92	3
contact	1.24	0.8	8111	47	7
tracing	1.64	0.4	3375	51	7
introduced	1.22	1	3260	55	10

Keyword	CPC	PCC	Volume	Score
when was contact tracing introduced	1.52	0.3	5465	89