Canada caregiver Line 304

The amount on this line has been claimed for the last two years. When viewing a 2Year and 5Year summary, this amount is not showing in 2017 column. It shows only on 2018 column. I checked the 2017 tax return and it shows the amount was claimed. Not sure why is not showing in a 2 and 5-year summary for comparison purpose.

Me as well. Must be a glitch.