Appox. usage (any sense): 0.468 per million words
Appox. usage (any sense): 0.264 per million words
Appox. usage (any sense): 1.64 per million words
Appox. usage (any sense): 1.44 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