Our reliability stats for the Xterra now include owner experiences through March 31, 2014, making them nearly a year ahead of other sources.

Repair frequencies, in terms of repair trips per 100 cars per year:

2010 Xterra: 13, low, very small sample size
2008 Xterra: 46, low, very small sample size
2007 Xterra: 16, low, very small sample size
2006 Xterra: 102, high, very small sample size
2005 Xterra: 88, moderate, small sample size
2000 Xterra: 88, moderate, very small sample size

Thank you, once again, everyone who has been helping. Next update in August.

For a deeper dive, including the stats for other cars and repair descriptions, and to sign up to help improve this information:

Nissan Xterra reliability ratings and comparisons