Markit Economics released final services purchasing managers' index (PMI) for Spain on Wednesday. Spain's final services purchasing managers' index (PMI) fell to 55.1 in December from 56.7 in November.

The index was driven by a slower growth in new business.

"The Spanish service sector ended 2015 with a sense of optimism, according to the latest PMI survey. The data, collected prior to the general election on December 20th, signalled a further sharp rise in business activity, and improved optimism that growth will be maintained during 2016," Senior Economist at Markit Andrew Harker said.