Why are some indicators no longer being updated?

There are two situations that may lead to an indicator becoming ‘dormant’. The first would be that of an indicator becoming less relevant. An example of such a case is when a particular policy is no longer in effect. The second situation would be a lack of data. In order to keep indicators up to date, data must be gathered from measurement networks, surveys or research. Sometime the information is no longer collected because it has become less relevant or due to a lack of funding. The Compendium will keep those indicators in its archives, but with the message that a current version is no longer available.