Matched context for costly and efficient

The page lists matched contexts for costly and efficient.

Share - costly	Share - efficient	Phrase
2.14%	3.63%	more {costly or efficient}
6.24%	0.80%	less {costly or efficient}
1.53%	0.18%	less [degree] {costly or efficient}
0.46%	0.08%	relatively [degree] {costly or efficient}
1.76%	0.48%	very {costly or efficient}