The graph shows the development of the Gross Nitrogen Balance (GNB) (kg nutrient/ ha Utilised Agricultural Area (UAA)) for the EU 28 over the period from 2004 to 2015, together with the nitrogen use efficiency (NUE) and GVA of the agricultural industry (values at current prices). For displaying all thre parameters and the development of their trends, an index is used setting 2005-values = 1

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