Appox. usage (any sense): 3.25 per million words
Appox. usage (any sense): 1.28 per million words
Appox. usage (any sense): 2.1 per million words
Appox. usage (any sense): 0.829 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