Table 3 Net benefits (million €,2009 values) by time horizon over which the benefits accrue each year.

7% discount factor

2,364

(1,332-3,305)

2,287

(1,285-3,193)

1,094

(591-1,562)

4% discount factor

7,403

(2,512-15,936)

6,474

(2,187-13,965)

2,365

(1,340-3,306)

2% discount factor Priolo

13,116

(7,667-18,187)

9,529

(5,556-13,226)

2,632

(1,497-3,689)

7% discount factor

576

(417-656)

528

(378-608)

-99

(-170;-53)

4% discount factor

3,419

(2,948-3,672)

2,806

(2,393-3,027)

613

(458-697)

2% discount factor

6,602

(4,091-8,253)

4,464

(2,592-6,077)

722

(239-1,107)