Appox. usage (any sense): 15.3 per million words
Appox. usage (any sense): 1.27 per million words
Appox. usage (any sense): 6.43 per million words
Appox. usage (any sense): 5.72 per million words
Appox. usage (any sense): 0.351 per million words
Appox. usage (any sense): 0.162 per million words