The Statistics area of the General tab shows the following data:
how many messages were checked
how much spam was caught
how many messages were manually blocked by users
how many messages were manually unblocked by users
estimated time and money saved
Time saved is calculated by dividing the average amount of time spent on each spam message by the amount of spam that was filtered. Money saved is calculated by the average amount of money spent per hour on spam (based on an average salary) multiplied by the time saved. You can change the variables used to calculate these figures by entering new ones in the text fields.