Appox. usage (any sense): 0.471 per million words
Appox. usage (any sense): 5.57 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
Appox. usage (any sense): less than 0.1 per million words
Appox. usage (any sense): 0.021 per million words