Appox. usage (any sense): 159 per million words
Appox. usage (any sense): 0.411 per million words
Appox. usage (any sense): 0.216 per million words
Appox. usage (any sense): 3.61 per million words
Appox. usage (any sense): 0.423 per million words
Appox. usage (any sense): 0.012 per million words
Appox. usage (any sense): less than 0.1 per million words