Torrent History

On the tracker, the torrent statistics on your Control Panel have two sections:

Shows the totals for each torrent.
 * Torrent History

The numbers in parenthesis in the Downloaded and Ratio columns refer to how much you downloaded while the torrent was free and are not considered when calculating your overall ratio.

The separation between non-free and free statistics is to make it easier to check the ratio of free torrents.

Shows the totals from the moment you (re)start a torrent in your client. This will start counting from zero again each time you (re)start a torrent.
 * Active Torrents

You can see the IP and port of each torrent. The format used is XXX.XXX.XXX.XXX:PPPPP where XXX.XXX.XXX.XXX is the IP address and PPPPP is the port number.

In general, in other parts of the tracker, you can see your own full IP address, but other people can only see part of it for security reasons.

Abbreviations
Below is a short explanation of the abbreviations that appear on both "Torrent History" and "Active Torrents" sections:

Example: If the column "L (SS)" has the value "5 (2)", 3 people (5 minus 2) are still downloading and 2 are Stealth-Seeders. On the tracker, Leechers include Stealth-Seeders.

When are the stats updated?
Each torrent in your bittorrent client sends statistics about itself to the tracker ("announces") every 60 minutes. Most bittorrent clients show the countdown per torrent.

The overall stats are updated whenever a torrent updates.