|Millions of euro|
|Electricity and gas wheeling||9,601||9,819||(218)||-2.2%|
|Maintenance and repairs||1,338||1,337||(39)||-2.8%|
|Telephone and postal costs||253||276||(23)||-8.3%|
|Leases and rentals||619||569||50||8.8%|
Costs for services came to €15,551 million in 2013, declining with respect to 2012 largely due to the decline in electricity transported for third parties as a result of the decrease in electricity demand in the main markets in which the Group operates.