C A 71 dB

B A 70 dB

D B 72 dB

B B 70 dB

B A 70 dB

E B 71 dB

C C 71 dB

D B 72 dB

C B 72 dB

C C 71 dB

C A 71 dB

C A 70 dB

C B 71 dB

C A 70 dB

D B 71 dB

C B 71 dB

A C 70 dB

B A 71 dB

C A 70 dB

B B 68 dB