Matched context for rarely and often

The page lists matched contexts for rarely and often.

Share - rarely	Share - often	Phrase
19.55%	5.86%	{rarely or often} [temporal] use
35.40%	2.29%	{rarely or often} necessary
19.22%	1.95%	{rarely or often} [temporal] occur
25.81%	0.64%	{rarely or often} [temporal] exceed