What are the aggravating factors in determining the appropriate sentence for a man convicted of a sexual assault?

[54] The aggravating factors have been enumerated as well as the mitigating circumstances present. The courts have continually emphasized that there is no standard sentence for there is neither a standard crime nor a standard criminal. Although there are principles to be applied which assist the court in arriving at the imposition of a sentence in any case, their application does not always mandate the same result. (See Regina v. Costin, [1996] O.J. No. 299, para. 35).