Yes, Stefan. On the NIM guidance, as Koos already indicated, we basically hedge our commercial balance sheet, so basically the fact that the interest rates they move up per se does not necessarily change our NIM because we manage this through how we price. The NIM guidance going forward for the year we had indicated high 140s, low 150s. That's exactly where we're coming out. In some lending categories we see some pressure. In some others we don't see margin pressure. We still have room to maneuver on the same size over the two few quarters 2017. We are still guiding around this level, high 140s and low 150s. Specifically in Germany, the margins there, we announced a rate cut at the end of the first quarter. Improved margin came in through that, however, that was offset by a lower investment income in the German book, some bank Treasury, more technical effects as well, continuous inflow of savings at a lower replicating rate as well and a mortgage market which is a bit competitive at this moment and we basically are very disciplined the way we price our mortgages in Germany, like everywhere, on a return on equity basis. So that more or less explains what's going on in Germany. On the cost growth, if you take the one-off in Luxembourg, where you see the cost growth, we have never guided flat cost. Maybe that's what you were expecting but we've never guided that. We've always guided cost income trends because we are investing in our franchise. We are investing in digitalization of all of our franchises. And therefore on a quarter-on-quarter basis, you may see some movements on the cost side but what you should really take into account is the trend of cost income because in the end we are investing to grow, we are investing to get more clients to get more business and that is where you can expect basically to return on the investments. Now we have indicated how we think this will develop across the three different businesses that we have, to market lead this business. These investments are truly to decrease cost because we don't expect too much growth on revenue side. In the Challenger and Growth, we actually expect cost to continue to increase but we also expect revenues to increase faster, and with that, to cost/income ratio. And for the wholesale banking side, the investments, we'll make sure that we become more and more efficient in a more operational areas of the wholesale bank but given the fact that we are growing our franchise successfully, we also need more people in the front office and that's where you see cost increase versus the cost decrease in the operational part of it. So for the wholesale banking side, given the current strategy, we expect flattish cost maybe a bit increasing but again decreasing cost/income ratio if you take it over a longer period of time.