B B 72 dB

B A 71 dB

B A 73 dB

B B 72 dB

B B 72 dB

D C 71 dB

B B 72 dB

B A 73 dB

B A 73 dB

A A 71 dB

C B 71 dB

A A 72 dB

A A 72 dB

D B 71 dB

A A 72 dB

A A 72 dB

C A 73 dB

C A 73 dB

B A 73 dB

A A 71 dB