Gfk released its consumer confidence index for the U.K. on Friday. GfK's U.K. consumer confidence index increased to 4 in January from 2 in December. Analysts had expected the index to decline to 1.

4 of 5 measures increased and 1 was unchanged.

"UK consumers remain resiliently bullish this month with no sign of the January Blues denting their view on the state of their personal finances for both the past year and also for the rest of 2016," Joe Staton, Head of Market Dynamics at GfK, said.