when was the b 29 developed

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when was the b 29 developed	0.81	0.9	3238	29	27
when	1.52	0.4	7444	45	4
was	0.26	0.4	3036	53	3
the	1.75	0.2	5047	48	3
b	0.37	0.4	7425	17	1
29	1.19	0.5	3442	62	2
developed	1.35	0.9	7783	88	9

Keyword	CPC	PCC	Volume	Score
when was the b-29 developed	0.85	0.6	9313	7
when did the b 29 enter service	1.05	1	9640	77
was the b 29 pressurized	1.09	0.5	6680	44
history of the b 29 bomber	1.24	0.2	2014	70
who designed the b 29	0.95	0.7	2156	77
how many b 29 were made	0.28	0.2	720	25
who made the b 29 bomber	0.11	0.7	479	90
how many b 29 were built	1.77	0.6	7583	45
who built the b-29	0.6	0.1	6754	92
b 29 aircraft engine	0.55	0.9	6917	77
what is the b-29	1.94	0.4	7505	3
b-29 wiki	1.66	0.7	6393	39
when did the b-29 enter service	0.41	0.1	8599	50
who made the b-29 bomber	1.61	0.9	1878	95
how many b-29 were built	1.56	0.7	4402	65