Markit Economics released services purchasing managers' index (PMI) for Spain on Wednesday. Spain's services purchasing managers' index (PMI) fell to 55.1 in April from 55.3 in March.

The decline was driven by a softer growth in in new orders and employment, while output prices decreased.

"While the headline activity figure from the latest Spain services PMI suggests that growth remained marked during April, other indices from the survey paint a less positive picture," Senior Economist at Markit Andrew Harker said.

"Political uncertainty contributed to the weakest rise in new business for close to a year-and-a-half," he added.