Appox. usage (any sense): less than 0.1 per million words
Appox. usage (any sense): 42.1 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): 42.1 per million words
Appox. usage (any sense): less than 0.1 per million words