Overall stats (without timeout), 
last week (20101214 - 20101220):

Client loss:                        0.013%
Overall IPv6 dualstack preference:  0.032%
- of which are 6to4:                81.565%
- of which are Teredo:              0.378%
- of which are other/native:        18.056%

Overall stats (with 10s timeout), 
last week (20101214 - 20101220):

Client loss:                        0.015%
Overall IPv6 dualstack preference:  0.032%
- of which are 6to4:                81.505%
- of which are Teredo:              0.225%
- of which are other/native:        18.270%