Appox. usage (any sense): 66.6 per million words
Appox. usage (any sense): 0.306 per million words
Appox. usage (any sense): 0.057 per million words
Appox. usage (any sense): less than 0.1 per million words
Appox. usage (any sense): 0.03 per million words
Appox. usage (any sense): less than 0.1 per million words