He said: “We do not want to rush something out that is not going to be useful for consumers and is not going to be something of value.
“We need to make sure that there is enough data that covers enough people, that has enough information for people to actually find it useful.
“And until we get better sight on how clean the industry data is, who can provide it, how big the schemes are that can provide it, how many people they cover, it's hard to know [when it will be ready].”
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