B A 72 dB

C B 73 dB

C B 73 dB

C B 73 dB

C A 70 dB

C B 73 dB

B B 70 dB

B B 70 dB

B A 73 dB

B A 71 dB

C B 69 dB

B A 71 dB

B A 71 dB

A B 71 dB

A C 73 dB

C B 73 dB

B A 69 dB

C B 71 dB

B A 72 dB

B A 71 dB