Quake 3 incorrect statistics graphs

Aa example what i mean:

yesterday, and days earlier to server comes exactly 10 people 5v5, but day stat are showing not more then 6

server allows 10players max, but stats are showing 20+,

in past was all ok.

( http://www.gametracker.com/server_info/87.239.82.225:27960/ )

The graphs display an average over the past hours. Unless the average number of players was 10 over all of the times GT scanned the server, the number shown will be less than 10.