Appox. usage (any sense): 38.5 per million words
Appox. usage (any sense): 29.9 per million words
Appox. usage (any sense): 1.72 per million words
Appox. usage (any sense): 17.7 per million words
Appox. usage (any sense): 1.09 per million words
Appox. usage (any sense): 0.048 per million words