Appox. usage (any sense): 2.62 per million words
Appox. usage (any sense): 0.438 per million words
Appox. usage (any sense): 0.093 per million words
Appox. usage (any sense): 0.06 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