How do we define FREQUENCY?

Frequency = the number of times a mail item has been interacted with in a four week period based on the following list of interactions:

• Opened it;
• Threw it away/recycled;
• Read/looked/glanced at it;
• Took it out of the house (e.g.to work);
• Put it on display (e.g. on a fridge, noticeboard);
• Used/did something with the information;
• Filed it for reference or records;
• Passed it on/left out for the person it's for;
• Put it in the usual place;
• Put it aside to look at later.

For example, addressed advertising mail has an average frequency of 4.2. All delivered items have an automatic frequency of 1 upon delivery.