The data have been provided by Geurt van de Kerk and Arthur Manuel. Please contact us if you would like to quote them. The Dashboard uses these data to produce aggregate indices, but this does NOT imply that Geurt van de Kerk and Arthur Manuel agree with the specific Dashboard way of calculating aggregate scores.
The Dashboard has adjusted the calculating methodology slightly, in order to keep in line with the common methodology applied by the Dashboard. However, this has caused only minor differences compared with the methodology used by the authors of the SSI.
We hope that the Dashboard will help to demonstrate the need for better co-ordination of data collection, and to advance towards a generally accepted set of core indicators of Sustainable Development.