Date difference

I have a column in which all cells have the date format, however, when I try to use the filter on this column, the dates show as follows:

- 2035
- 2022
- 2021
- 01/03/2023
- 01/10/2022
- 10/14/2022
- 01/20/2023

Why are the 2023 and 2022 dates not being grouped by year? what do I need to do for them to be grouped?

Thanks!!!Screenshot 2021-05-24 082658.png