Create Table With Aggregated Dates I'm trying to create a table which aggregates all full date (Year-Month-Day) values into the Year. The issue I'm facing is that, even though I managed to achieve that, view still somehow sees day and month of the date field, and shows them as 2 different records.

In the end I'd like to plot that data into the charts module and receive a result of Number of Items vs their Age

These are the screenshots of my view as I have it right now.
You can use different formatters for the exact same field when you are in a different context. So, while the full node is shown, you can use the full date (as set in CT's Manage Display). When displaying the date in views, you can use the time ago. For correct grouping, add the date field once more, exclude it from display, then set the formatter to a custom one which only shows the year and finally use that rendered output to group the view's rows.