Appox. usage (any sense): 1.09 per million words
Appox. usage (any sense): 0.387 per million words
Appox. usage (any sense): 10.5 per million words
Appox. usage (any sense): 7.02 per million words
Appox. usage (any sense): 1.78 per million words
Appox. usage (any sense): less than 0.1 per million words