Pivot table filter is showing 2 stange dates

[INN]

Hi
I created a pivot table but when I tried to filter by Year, the filter is showing me 2 dates beside Year 2021 and 2021 and beside each date is symbol >
<07/01/21 and >18/12/22 Why is that? When I filter the date column in the original data set, I see everything is ok , the 2 years, 2021 and 2022. Please see screen shots. I checked
the original table, and used IsNumber function to see if all dates are formatted as a number and the answer was TRUE to all.
Thank you very much.

SalesPerson	Date	Amount	Region
Helen	23/04/21	295	East
Helen	26/06/21	776	East
Helen	10/02/22	511	East
Helen	25/04/22	225	East
Helen	25/06/22	168	East
Helen	10/02/22	990	East
Helen	21/01/22	624	East
Helen	16/07/22	157	East
Helen	22/03/21	245	East
Helen	01/02/22	709	East
Helen	25/10/22	242	East
Helen	19/05/21	135	East				Years	(All)
Mona	27/09/21	223	south
Mona	23/03/21	972	south					Sum of Amount
Mona	11/04/22	278	south				Ajit	6225
Mona	20/06/21	647	south				Alexander	5643
Mona	12/09/22	996	south				Ali	4447
Mona	31/05/21	355	south				Helen	5077
Mona	17/12/22	296	south				Jack	3237
Ajit	22/02/22	701	West				Linda	8342
Ajit	09/09/22	352	West				Mike	6933
Ajit	15/01/21	379	West				Mona	3767
Ajit	17/03/22	736	West				Sam	5553
Ajit	20/04/22	601	West				Grand Total	49224
Ajit	04/05/21	501	West
Ajit	19/10/21	260	West
Ajit	06/07/22	395	West
Ajit	13/07/21	308	West
Ajit	22/08/22	973	West
Ajit	19/02/21	567	West
Ajit	07/03/22	452	West
Jack	15/10/21	256	East
Jack	09/07/22	238	East
Jack	21/09/21	256	East
Jack	09/04/22	306	East
Jack	17/08/21	194	East
Jack	04/04/22	179	East
Jack	11/11/21	934	East
Jack	29/11/22	874	East
Ali	25/07/22	868	North
Ali	15/07/21	150	North
Ali	17/05/21	781	North
Ali	28/04/22	208	North
Ali	13/04/22	625	North
Ali	19/08/22	382	North
Ali	11/02/21	229	North
Ali	31/08/21	227	North
Ali	03/10/21	358	North
Ali	05/05/22	619	North
Linda	27/06/21	799	South
Linda	28/07/21	156	South
Linda	15/06/22	733	South
Linda	24/04/22	815	South
Linda	07/02/21	995	South
Linda	19/07/22	613	South
Linda	27/08/21	353	South
Linda	21/07/21	573	South
Linda	23/03/21	269	South
Linda	16/05/22	163	South
Linda	05/06/21	944	South
Linda	29/08/21	944	South
Linda	01/01/22	985	South
Sam	20/08/22	512	West
Sam	12/11/22	888	West
Sam	13/03/22	133	West
Sam	04/10/21	100	West
Sam	18/01/22	891	West
Sam	26/08/21	397	West
Sam	07/02/21	312	West
Sam	28/08/22	669	West
Sam	19/10/21	261	West
Sam	14/02/22	255	West
Sam	05/03/21	961	West
Sam	02/03/22	174	West
Mike	02/04/22	801	North
Mike	07/02/22	464	North
Mike	24/12/21	780	North
Mike	27/09/21	713	North
Mike	29/06/22	658	North
Mike	27/03/21	449	North
Mike	10/03/22	559	North
Mike	07/12/22	893	North
Mike	30/12/21	183	North
Mike	10/07/22	831	North
Mike	01/10/21	602	North
Alexander	07/01/21	800	South
Alexander	22/12/21	300	South
Alexander	25/08/22	600	South
Alexander	29/03/22	990	South
Alexander	10/07/22	876	South
Alexander	04/02/22	123	South
Alexander	03/09/22	854	South
Alexander	31/10/22	100	South
Alexander	27/08/21	300	South
Alexander	06/08/21	700	South

 

[RoryA]

If you group dates in the pivot, you will see options for values before and after your specified date ranges.

 

[INN]

Makes sense. Thank you very much.