when was the last space shuttle

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when was the last space shuttle	0.11	1	6075	67	31
when	1.39	0.6	1977	53	4
was	0.98	0.1	6064	29	3
the	1.32	0.9	8632	22	3
last	0.09	0.6	8270	23	4
space	0.37	0.1	3419	56	5
shuttle	0.72	0.5	3287	38	7

Keyword	CPC	PCC	Volume	Score
when was the last space shuttle flight	0.12	1	3929	47
when was the last space shuttle launch	0.61	0.3	5465	31
when was the last space shuttle mission	1.4	0.6	9440	5
when was the last space shuttle disaster	0.99	0.9	4911	86
when was the last space shuttle explosion	0.47	0.9	6155	31
when was the last space shuttle	0.92	1	8679	95
when was the last space shuttle retired	1.46	0.8	2229	97
last space shuttle flight	0.22	0.6	9734	96
last space shuttle launch	1.15	1	6751	34
last space shuttle mission	1.28	0.1	4643	8
last space shuttle	0.41	0.6	3443	48
what was the last space shuttle flight	0.58	1	8099	96
last space shuttle disaster	0.63	0.3	9240	51
space shuttle endeavour last flight	0.25	0.9	6609	36
when did the last space shuttle flight occur	0.44	0.6	3128	53
last flight of space shuttle discovery	0.97	1	393	25
space shuttle discovery last launch	1.52	0.1	3246	83
last us space shuttle launch	1.6	1	263	73
when did the last space shuttle launch	0.98	0.8	6238	28
last night space shuttle launch	0.18	0.2	2336	99
when was the last space shuttle launched	1.96	0.4	5912	100