Appox. usage (any sense): 17.3 per million words
Appox. usage (any sense): 24.1 per million words
Appox. usage (any sense): 1.36 per million words
Appox. usage (any sense): 0.435 per million words
Appox. usage (any sense): 0.084 per million words
Appox. usage (any sense): 0.015 per million words