Appox. usage (any sense): 4.9 per million words
Appox. usage (any sense): 3.62 per million words
Appox. usage (any sense): 3.61 per million words
Appox. usage (any sense): 3.61 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