Hi ya Joe,
I'm also on the NBN (FTTN) and the 100 Mbps speed. Here's a test I've just done.....
http://www.speedtest.net/my-result/5370090715
Also, here are the stats from my modem for a comparison.
DSL Status Up
DSL Uptime
1days 11hours 32min 35sec
DSL Type
VDSL2
DSL Mode
Fast
Maximum Line rate
52.76 Mbps 142.99 Mbps
Line Rate
40 Mbps 109 Mbps
Data Transferred
3648.63 MBytes 672.97 MBytes
Output Power
11.2 dBm -2.4 dBm
Line Attenuation
2.6, 12.1, 18.3,N/A,N/A dB 7.4, 15.4, 21.9 dB
Cheers