Appox. usage (any sense): 15.3 per million words
Appox. usage (any sense): 0.883 per million words
Appox. usage (any sense): 0.85 per million words
Appox. usage (any sense): 0.315 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