Original: With an annual flow of about 10,000 cubic billion metres ( cbm ) and usage of 4,400 cbm ( of which irrigation constitutes 96 per cent ) , the river accounts for more than 70 per cent of Delhi 's water supplies .
Simplified: Rivers that come out of the Yamuna include the Tons ( the largest of the ones that come out of it ) , Chambal , Betwa , and Ken .