This page provides information on the average number of days a customer is placing an order and how long it has been since that customer last placed an order. This data is useful in trying to identify customers who have not returned to purchase product as they usually do. The size of the bubble on the graph represents the value of that customers orders in the last 12 months.
Below is an example of this page. When you hover over a bubble the detail associated with that customer is presented. In the example below the customer on average orders every 53 days but it has been 178 days since they last ordered.