Appox. usage (any sense): 411 per million words
Appox. usage (any sense): 2.79 per million words
Appox. usage (any sense): 0.237 per million words
Appox. usage (any sense): 0.015 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): 2.7 per million words