Environmental statistics are very much in their infancy in comparison with most other domains of statistics. Economic and social statistics have been around for a hundred years. One of the things that we've achieved in the economic and social statistics to a much greater extent, particularly in economic statistics, than we have in environmental statistics is international comparability, harmonization of concepts, harmonization of methods, and harmonization of data collection activities.
We're a long way away from that kind of harmonization in the world of environmental statistics. So I'm not in any kind of position to say 93% is right or wrong. I am in absolutely no position whatsoever to say that. But I can assure you that the quality of environmental data, as a general rule, in comparison with their economic and social cousins is of a degree of magnitude less.
I'm an environmental statistician. This is what I do for a living. Our view is that the numbers need to be interpreted cautiously and carefully. There's no doubt about it. I don't know whether 93% is the right number or the wrong number, but there are reasons to be careful in the interpretation of the numbers.