Appox. usage (any sense): 11.6 per million words
Appox. usage (any sense): 0.18 per million words
Appox. usage (any sense): 10.6 per million words
Appox. usage (any sense): 0.045 per million words
Appox. usage (any sense): 0.021 per million words
Appox. usage (any sense): 0.021 per million words