Coupon: Gross fixed cuopons equal to 2.70 per cent per annum payable on 17 April 2016, 17 April 2017 and 17 April 2018; then variable coupons linked to the performance of Eurostoxx50 index, payable on 17 April 2019, 21 April 2020, 19 April 2021 and 19 April 2022, which could be equal to gross 6 per cent per annum or zero.