Interesting: IPv6 traffic is the majority of my Internet traffic at home: 54%. And IPv4 is the minority.
Calculation (thanks to the MRTG monitoring of my router):
- IPv6 traffic has an average of 366.0 kb/s
- Total IPv4+IPv6 traffic has an average of 676.4 kb/s
So divide those numbers IPv6 by total traffic: 366/676 = 54% IPv6 traffic.
The explanation is quite easy: the well-known high-traffic sites (youtube, google, facebook) are IPv6-enabled.
PS: If "an average 676.4 kb/s" sounds low: that's almost 7GB per day. Rule of thumb: 100 kbps average is 1GB per day.
MRTG overview of my traffic: Green is total traffic, Blue is IPv6. Note there are only two IPv4-spikes.