12 बोसोर बैसोयाव हरफ्रोमबो गु घनता उनदुनायनि गर गोनांथिनिफ्राय 20 बोसोर बैसोआव डाइन घनता, 40आव स्नि घनता, 60 आव 6 1/2 घनता आरो 80 आव 6 घनतासिम खमायो।
From nine hours of sleep per night at the age of 12 the average sleep needs decrease to eight hours at the age of 20, seven hours at 40, 6 1/2 hours at 60 and 6 hours at 80.