B A 70 dB

B B 72 dB

B B 70 dB

B A 70 dB

B A 71 dB

A A 71 dB

A A 67 dB

C B 71 dB

C A 68 dB

B A 70 dB

B A 71 dB

B B 72 dB

B A 70 dB

C B 72 dB

A A 69 dB

C A 72 dB

A B 71 dB

C A 71 dB

B A 70 dB

B A 69 dB