Appox. usage (any sense): 26.5 per million words
Appox. usage (any sense): less than 0.1 per million words
Appox. usage (any sense): 4.08 per million words
Usage unknown
Appox. usage (any sense): 0.222 per million words
Appox. usage (any sense): less than 0.1 per million words
Appox. usage (any sense): less than 0.1 per million words