Appox. usage (any sense): 690 per million words
Appox. usage (any sense): 85.8 per million words
Appox. usage (any sense): 32.1 per million words
Appox. usage (any sense): 0.087 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