Average incomes presented here are based on actual dollar amounts. Converting to 2015 constant dollars would require adjusting by the Consumer Price Index (CPI); a measure which varies by province and territory, and even differs for larger cities. This would lead to different factors applied to 2005 data for over 300 First Nations spread out over 10 provinces and two territories. As the conversions were not made, users should exercise caution if making comparisons over time.