FREQUENCY, C/S 
22 
50 ; 
= 
fos) 
iS) 
SS 
ips) 
‘> 
10 
{ 
1 2 3 
TIME, MINUTES 
EAU ONUTIE) Ve) SOWA TAQ Olin OLN CY// Sum ON GN Ee UNIISTElS on GIN) 
TLOWVUG! -UAESTE SMG igCamO) MMC Cum ON aC: ChiamnOn/ gmt nOMMSHE CLOMUG Samcaie 
duration and are of two types. Tey els ONG) 
PUIG OCCU? G6 HYSO" Gad S’4O0"%, Kyjpje LL LOnRG oe 
PWNS OCCOUPF Gb Op O20", BIO", B"'S50"%, Gre 3°20". 
