traffic statistic in detail

[cyrus1u1]

i've just realized some impossible values in the traffic statistic. i've got the followings..

FTP
2.08 MB

2.01 MB

0.07 MB

0%

Bar Begin 0% used 100% available Bar End
HTTP
24 902.80 MB

0.00 MB

24 902.80 MB

100%

Bar Begin 100% used 0% available Bar End
POP3/IMAP
0.00 MB

0.00 MB

0.00 MB

0%

Bar Begin 100% available Bar End
SMTP
0.00 MB

0.00 MB

0.00 MB

0%

I'm sure the email is not 0 because on this domain i've got at least 20 emailadresses with big emails.

any ideas?