On 20 June 2012, the European Commission announced that national contributions to the EU should increase by EUR 1.47 billion in 2012, due to a decrease in customs revenue. The main reason for this decrease is a lower estimated average tariff of 1.32% (instead of 1.45%), which would result in a decrease of customs duties with EUR 1.52 billion in 2012. This represents a decrease of 7.9% compared to the May 2011 forecast.