Router Statistics

System Up Time: 646:03:20
Port Status TxPkts RxPkts Collisions Tx B/s Rx B/s Up Time
WAN MER 2211046 23530817 0 739029515 2147483647 95:50:34
LAN Up 24054787 15311432 0 3928141519 2010243636 646:03:20
WLAN Down 0 0 0 0 0 0:00:00
ADSL Link Downstream Upstream
Connection Speed 4092 kbps 797 kbps
Line Attenuation 45.0 dB 24.8 dB
Noise Margin 5.6 dB 12.1 dB
Poll Interval: (secs, at least 3s)

It has dropped 1.5meg in the last month or 2.. Measurements made at the master socket. What should I expect from these stats?

Thanks in Advance