Please see here,this was from April 24 of last month:
http://forums.spybot.info/showthread...rotected-Items
The 15492 number you're seeing beside some of the entries is for each individual immunization.
There are 15492 entries in the hosts file.
There are 15492 popups blocked in Firefox,and so on.
The total you see at the top is the total protected items,added all together,to get 188799.
There are also sometimes entries removed from immunization,and then new ones added,so it might coincidentally appear that there have been no updates to immunization when viewing the numbers sometimes,also.
(The reason why some immunization is removed is shown in the Spybot help file,so I'll quote it here.)