Source: SEA 18,345 18,566 3,877 4,028 3,973 6,651 6,837 6,840 28,870 29,210 29,379 2017 2016 2015 We do not directly carry out retail activity (sale to the public, duty free and duty paid, catering, car hire, management of spaces for the carrying out by third parties of banking activities), but we allocate to third parties the use of commercial spaces at the Milan airports.