Yanukovych returned to power in 2006 as Prime Minister in the Alliance of National Unity, until snap elections in September 2007 made Tymoshenko Prime Minister again. Amid the 2008–09 Ukrainian financial crisis the Ukrainian economy plunged by 15%. Disputes with Russia briefly stopped all gas supplies to Ukraine in 2006 and again in 2009, leading to gas shortages in other countries. Viktor Yanukovych was elected President in 2010 with 48% of votes.