<Li> Jump up ^ Latvia, Ireland and Portugal were the reference states . </Li> <Li> Jump up ^ Reference values from the ECB convergence report of June 2016 . </Li> <Li> Jump up ^ Bulgaria, Slovenia and Spain were the reference states, with Cyprus and Romania excluded as outliers . </Li> <Li> Jump up ^ Slovenia, Spain and Bulgaria were the reference states . </Li>

When is poland going to use the euro