Appox. usage (any sense): 5 per million words
Appox. usage (any sense): 5.97 per million words
Appox. usage (any sense): 0.174 per million words
Appox. usage (any sense): 0.054 per million words
Appox. usage (any sense): 1.73 per million words
Appox. usage (any sense): less than 0.1 per million words