Cost assumption

If improvement in water use efficiency is costless

Improvement in water use efficiency needs additional investment costs

Rate of improvement in WUE

10%

20%

30%

40%

10%

20%

30%

40%

Bangladesh

1216

1098

986

878

1146

1013

835

615

India

8696

7335

6275

5409

8175

6646

4873

2845

Nepal

34

24

17

11

29

17

−2

−27

Pakistan

1160

910

725

562

986

665

187

−447

Sri Lanka

146

101

75

58

138

91

51

14

Rest of South Asia

100

74

53

34

90

60

22

−24