Appox. usage (any sense): 2.19 per million words
Appox. usage (any sense): 0.471 per million words
Appox. usage (any sense): 0.09 per million words
Appox. usage (any sense): 1.58 per million words
Appox. usage (any sense): 0.012 per million words
Appox. usage (any sense): less than 0.1 per million words