Appox. usage (any sense): 0.682 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): 0.018 per million words
Appox. usage (any sense): 0.018 per million words