We've released results based on owner experiences through the end of September. In terms of successful repair trips per 100 vehicles per year:
2004: 60, a bit better than average, but a small sample size
2005: 116, worse than average, but a very small sample size; based on the other results, the actual repair rate for the 2005 is probably about half this number
2006: 18, much better than average, and the only year with a (barely) adequate sample size
2007 and 2008: insufficient data
Clearly, additional participants are very much needed.
For the full set of results, and to sign up to participate:
TrueDelta Vehicle Reliability Survey results