Figure 1: Sub-national tax revenue as a percentage of total tax revenue, 2011 (source: OECD Fiscal Decentralisation database)
Ffigur 1: Refeniw treth is-genedlaethol fel canran o gyfanswm y refeniw treth, 2011 (ffynhonnell: cronfa ddata ‘Fiscal Decentralisation’ yr OECD)