Appox. usage (any sense): 50.6 per million words
Appox. usage (any sense): 26.8 per million words
Appox. usage (any sense): 16.1 per million words
Appox. usage (any sense): 1.02 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