They were both unceremoniously canceled by CBS, but while the audiences for “Jericho” and “Moonlight” weren’t vast, they were stable. The two shows topped a list of 13 programs tracked through Fast National ratings from Nielsen Media Research over the 2007-08 season, showing they maintained the strongest audiences in terms of mobility. “Jericho” had a stability index rating of 92.9, according to SyFy Portal, while “Moonlight” had a stability index rating of 87.9. The numbers, which show the amount of audience retained based on the show’s highest overnight rating versus its average, is meant to give a snapshot look of how much audience on average a show retained throughout the course of the season. The two index numbers come despite “Moonlight” finishing seventh and “Jericho” 11th …