Appox. usage (any sense): 6900 per million words
Appox. usage (any sense): 231 per million words
Appox. usage (any sense): 5.8 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
Appox. usage (any sense): less than 0.1 per million words