Not only that the GDPR must be reported in the same way but also that the system be comparable/generalisable. The free country correlation pretty much is the 't

Not only that the GDPR must be reported in the same way but also that the system be comparable/generalisable. The free country correlation pretty much is the 'traing error' here. If there is e.g. a systematic bias with light and freedom one also might have a problem. Also the pretty much assume a linear model as the GDPR is much higher in the 'free' world. Still it is actually good to have such a proxy measures. Wonder if authoritarian regimes will now have dedicated lighting development strategies...