Appox. usage (any sense): 129 per million words
Appox. usage (any sense): 3.42 per million words
Appox. usage (any sense): 0.775 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
Appox. usage (any sense): less than 0.1 per million words