Appox. usage (any sense): 82 per million words
Appox. usage (any sense): 0.646 per million words
Appox. usage (any sense): 12 per million words
Appox. usage (any sense): 0.18 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