Statistics -- ADSL

Mode: G.DMT
Type: Fast
Line Coding: Trellis On
Status: No Defect
Link Power State: L0

Downstream Upstream
SNR Margin (dB): 30.1 27.0
Attenuation (dB): 28.0 15.5
Output Power (dBm): 11.9 10.8
Attainable Rate (Kbps): 11008 1304
Rate (Kbps): 1536 512
K (number of bytes in DMT frame): 49 17
R (number of check bytes in RS code word): 0 0
S (RS code word size in DMT frame): 1 1
D (interleaver depth): 1 1
Delay (msec): 0 0

Super Frames: 12134411 12134744
Super Frame Errors: 47 6
RS Words: 0 0
RS Correctable Errors: 0 0
RS Uncorrectable Errors: 0 N/A

hey guys im planning to upgrade my line from 1mb to 4mb but the link from my house to tm exchange is 4km(shown in my bill). what do you guys think?