description_of_assets_reliefs_and liabilities aggregate_consideration_declared_2014_€m aggregate_consideration_declared_2015_€m aggregate_consideration_declared_2016_€m aggregate_consideration_declared_2017_€m aggregate_consideration_declared_2018_€m aggregate_consideration_declared_2019_€m aggregate_consideration_declared_2020_€m aggregate_consideration_declared_2021_€m