Appox. usage (any sense): 910 per million words
Appox. usage (any sense): 65.8 per million words
Appox. usage (any sense): 59.5 per million words
Appox. usage (any sense): 0.018 per million words
Appox. usage (any sense): less than 0.1 per million words
Appox. usage (any sense): 2.87 per million words