For the performance reference period starting on 1 January 2012 and ending on 31 December 2014, the European Union-wide performance targets shall be as follows:(a)environment targetan improvement by 0,75 of a percentage point of the average horizontal en route flight efficiency indicator in 2014 as compared to the situation in 2009;(b)capacity targetan improvement of the average en route Air Traffic Flow Management (ATFM) delay so as to reach a maximum of 0,5 minute per flight in 2014;(c)cost-efficiency targeta reduction of the average European Union-wide determined unit rate for en route air navigation services from 59,97 EUR in 2011 to 53,92 EUR in 2014 (expressed in real terms, EUR 2009), with intermediate annual values of 57,88 EUR in 2012 and 55,87 EUR in 2013.