In 2009 a major tax reform was implemented. The overall marginal tax rate was reduced by 7.5%. In the end, the top tax rate (topskatten) was not changed, but the income level at which it applied was raised. This had the effect of removing 350,000 Danes from the top tax bracket. The medium tax rate was eliminated, and the lowest was reduced by 1.5%. Various other tax reforms were enacted such as an increase in the old age pension, incentives for renovation, and various initiatives designed to improve energy efficiency. Finance Minister, Lars Lokke Rasmussen, called it the biggest reduction in the marginal tax rate since the introduction of income tax in 1903. In 2009 tax revenue was 777,375 million Krone. It had grown to 831,172 million in 2011, 901,001 million in 2013, 954,473 million in 2015, and 995,058 million in 2017. It's important to note that from 2011 to 2015 Social Democrat Helle Thorning-Schmidt was the prime minister, however, she passed a tax-reform with support from the liberal-conservative opposition. It raised the top tax threshold, effectively lowering tax rates for high income earners.