when did the nasa shuttle program end

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when did the nasa shuttle program end	0.79	0.6	7833	71	37
when	0.88	0.3	1828	50	4
did	1.9	0.7	3644	90	3
the	1.13	1	2745	42	3
nasa	0.68	0.5	934	5	4
shuttle	1.28	0.4	1461	58	7
program	0.28	0.8	5882	78	7
end	1.21	0.4	1918	52	3

Keyword	CPC	PCC	Volume	Score
when did the nasa shuttle program end	1.05	0.6	9875	19
why did nasa end the space shuttle program	0.93	0.1	2600	14
end of nasa shuttle program	0.68	0.1	7133	36
nasa ends space shuttle program	1.32	0.9	9459	26
when did the shuttle program end	0.55	0.6	7371	87
when did the nasa shuttle program begin	1.6	0.8	5495	84
why did the space shuttle program end	1.96	0.6	7614	11
the space shuttle program ended in	1.49	0.4	5941	76
who ended the space shuttle program	1.28	0.6	4435	89
the end of the space shuttle program	0.02	0.6	3430	45
why did nasa stop the shuttle program	0.31	0.1	9872	35
when did space shuttle take off	0.66	0.9	7664	10
why was the shuttle program ended	1.33	0.7	3961	98
nasa shuttle program history	1.12	0.3	2086	18
nasa space shuttle program timeline	1.71	0.1	2710	31
nasa space shuttle program history	1.97	0.4	1079	77