Consecutive CCleaner scans gives different values MB to be removed.

[cpnfantstk]

I really find CCleaner the best of the best in keeping my computer running smoothly. However. I have noticed on occasion that after surfing the web, I would scan with CCleaner and it would give me 38mb (one example) to be removed then I would rescan and give me 6.36mb to be removed. Why the different values? Once I remember getting some outrageous 585mb to be removed scan and follow with a 22mb to be removed scan. Whats going on? Keep in mind I am not removing anything between the scans. Both the current version and previous ver of CCleaner does this on my Windows XP and my ME computer.