Appox. usage (any sense): 73 per million words
Appox. usage (any sense): 9.44 per million words
Appox. usage (any sense): 0.018 per million words
Appox. usage (any sense): 0.012 per million words
Appox. usage (any sense): less than 0.1 per million words
Usage unknown
Appox. usage (any sense): less than 0.1 per million words