Appox. usage (any sense): 2.13 per million words
Appox. usage (any sense): 1.99 per million words
Appox. usage (any sense): 5.57 per million words
Appox. usage (any sense): 1.8 per million words
Appox. usage (any sense): 0.042 per million words
Appox. usage (any sense): less than 0.1 per million words