Overall stats (without timeout), 
last week (20110502 - 20110508):

Client loss:                        0.009%
Overall IPv6 dualstack preference:  0.216%
- of which are 6to4:                5.808%
- of which are Teredo:              0.147%
- of which are other/native:        94.045%

Overall stats (with 10s timeout), 
last week (20110502 - 20110508):

Client loss:                        0.015%
Overall IPv6 dualstack preference:  0.215%
- of which are 6to4:                5.538%
- of which are Teredo:              0.144%
- of which are other/native:        94.318%