Matched context for deficiency and concentration

The page lists matched contexts for deficiency and concentration.

Share - deficiency	Share - concentration	Phrase
11.44%	13.71%	oxygen {deficiency or concentration}
1.10%	0.17%	air {deficiency or concentration}
1.38%	0.27%	have {deficiency or concentration} [perform operation]
0.69%	0.20%	oil {deficiency or concentration}