2.5 



S 2-3 - 



2.1 - 



t: 1.9 



RETURN PERIOD IN YEFIRS 



5 10 20 



40 60 100 



1.7 



1.0 



50.0 eO.O 90.0 95.0 98.0 99.0 



CUMULRTIVE PROBABILITY SCALE 



EXTREMAL TYPE I 



99.9 



14.0 



12.0 - 



RETURN PERIOD 

 5 



¥ 10.0 - 



8.0 - 



6.0 - 

 1.0 



50.0 80.0 90.0,95.0 98.0 99.0 



CUMULATIVE PROBABILITY SCALE 



EXTREMAL TYPE I 



99.9 



B3 



