So Akamai release a report every quarter to show internet trends from around the world (State of the Internet). The report is due out June 24 (for Q1 2015), but I managed to get some figures ahead of time.
Australia
Q4 2014
Average: 7.4Mbps
Peak: 36.9Mbps
>4 Mbps: 69%
>10 Mbps: 16%
Q1 2015
Average: 7.6 Mbps
Peak: 40.8 Mbps
>4 Mbps: 71.5%
>10 Mbps: 17.1%
NZ
Q4 2014
Average: 7.3Mbps
Peak: 34.3Mbps
>4 Mbps: 80%
>10 Mbps: 15%
Q1 2015
Average: 8.4 Mbps
Peak: 36.7Mbps
>4 Mbps: 85.8%
>10 Mbps: 20.6%
Looks like NZ's average is up quite a bit, now for the first time we're faster on average than Australia. Broadband adoption is also racing ahead as nearly 86% of connections in NZ are faster than 4Mbps.
It looks like UFB/Gigatown is having a positive effect on the stats. I'm not sure where it puts us in relation to the rest of the world, but I think we'll be moving up a few places.