The percentage of bottles in the container-deposit scheme that is returned is too low. At the same time, the container-deposit rate on plastic bottles has never been adjusted for inflation. In fact, at the end of 2001 the container-deposit rate on plastic bottles was even reduced. The Dutch Human Environment and Transport Inspectorate (ILT) is now proposing to increase the rate to 50 euro cents. In the Financieele Dagblad, Martijn Mak (Amsterdam Bureau for Economics) states that the increase to 50 cents would still be modest: to correct for the entire decline in the value of the container-deposit rate that has occurred since its introduction, the rate would have to amount to 94 euro cents.