Appox. usage (any sense): 18.8 per million words
Appox. usage (any sense): 22.4 per million words
Appox. usage (any sense): 6.96 per million words
Appox. usage (any sense): 5.95 per million words
Appox. usage (any sense): 2.2 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