C B 72 dB

B B 72 dB

B A 70 dB

A A 70 dB

B A 69 dB

B A 71 dB

B A 71 dB

A B 67 dB

C A 69 dB

C A 69 dB

B A 70 dB

B B 69 dB

C A 72 dB

C B 72 dB

A A 71 dB

B B 71 dB

B A 70 dB

C A 71 dB

C A 71 dB