Real GDP data are from Statistics New Zealand (table ref: SNE065AA). Please note that in Energy in New Zealand 2015 the base year for constant prices was changed from 1995/96 to 2009/10 by Statistics New Zealand. Therefore comparisons of this series with previous versions should be done with great care.
Transport is included in the national average because transport supports the entire economy.
Energy intensity: a measure of the energy used (in MJ) per unit of GDP. It is influenced by the composition of industry within the economy, improvements in energy efficiency, and changes in behaviour.
Energy self-sufficiency: the ratio of indigenous production of energy to total primary energy supply (TPES)