Appox. usage (any sense): 0.318 per million words
Appox. usage (any sense): 0.147 per million words
Appox. usage (any sense): 0.06 per million words
Appox. usage (any sense): 0.042 per million words
Appox. usage (any sense): less than 0.1 per million words
Appox. usage (any sense): less than 0.1 per million words