When is a minor criminal record outweighed the seriousness of the crime?

Appellant also points to his limited criminal record, which consists of a single offense of vehicle theft committed when he was 15 years old for which he received home probation and jurisdiction was terminated 10 months later. Based on the facts here, we find that appellant's youth and minor criminal record were "substantially outweighed by the seriousness of the crime[s] and the circumstances surrounding [their] commission . . . ." (People v. Gonzales (2001) 87 Cal.App.4th 1, 17.)