There can be unexplained year-to-year deviations in CR's results. Also, their data are nearly a year old at this point. If a common problem tends to appear at a specific age, what was common with the 2005s in their stats could be common with the 2006s more recently.
That said, the 2005 has had an unusually high repair frequency in our stats for over a year, for unclear reasons.
As the last year of the first generation, the 2006 could be your best best unless you can somehow swing one that's 2010 or newer.
The 2002 through 2004 also look good in our stats, but with vehicles this old owners often start letting problems slide rather than fixing them. A 2006 would almost certainly be more reliable, if only because it's newer.