Ethernet vs Internet bandwidth. Help me figure it out.

When I tried some bandwidth monitoring tools recently I noticed something strange: My upload speed is twice as high on the network than it actually is going into the Internet. And when I browse the web it normalizes, you can see that here: http://imgur.com/ASv9d.png (80kb is the real capacity)

The setup is as follows: PC(Ethernet) --> Router/Modem --> Phone Line (DSL)
Nothing fancy there, nothing else connected.

The connection has about 80kb/s upload. But most of the time 160kb/s are going into my network - repeatable with µTorrent as well as uploads to RapidShare (edit: those 2 correctly report the real bandwidth). I see that the figure is correct looking at the properties window of the LAN connection, the counter always moves by 150.000+ bytes. When I throttle the bandwidth lower it scales accordingly to 200%.

This has to be the weirdest issue I've encountered yet. It's not impeding functionality but it does make me go WTF. :)

thats normal.... how the inet and "caps" work... would work the same way and see the same things if you had your LAN "throttled". It will make a connection at a "top" or faster speed that you are allowed, then throttle back down to the limit set by your modem