Appox. usage (any sense): 411 per million words
Appox. usage (any sense): 2.79 per million words
Appox. usage (any sense): 1.96 per million words
Appox. usage (any sense): 4.43 per million words
Appox. usage (any sense): less than 0.1 per million words
Appox. usage (any sense): less than 0.1 per million words