I've completed a more thorough analysis (see previous post) of Ontario Court of Appeal decisions. This analysis involves the automated extraction of costs awards from thousands of decisions between the years 2007 and 2014.
Of the cases studied, my program was able to confidently extract 1723 costs awards. Here are the statistics:
Number of Awards: 1723
25th Percentile: $5073
75th Percentile: $16222
95th Percentile: $39849
Note that this analysis is only of awards that had a fixed dollar value. It's possible that these types of cases aren't a fair sample of costs awards.