A C 70 dB

C C 72 dB

B A 70 dB

A A 71 dB

C B 70 dB

A C 70 dB

C B 73 dB

C B 73 dB

C B 73 dB

C B 73 dB

D B 73 dB

C A 72 dB

C B 73 dB

D A 72 dB

C A 73 dB

D A 73 dB

D A 69 dB

D A 69 dB

C A 73 dB

C B 73 dB