Appox. usage (any sense): 280 per million words
Appox. usage (any sense): 52.7 per million words
Appox. usage (any sense): 120 per million words
Appox. usage (any sense): less than 0.1 per million words
Appox. usage (any sense): 0.093 per million words
Usage unknown
Appox. usage (any sense): less than 0.1 per million words
Appox. usage (any sense): less than 0.1 per million words
Appox. usage (any sense): 0.27 per million words