ISO week i am getting last year data

Dear Experts,

I have a report in that we are getting date based on ISO week. for this year when i select 2016 i am getting 2015-12 data also in report which i should not get

EX:

2015-12| 2016-01|2016-02|2016-03- i should not get like this

2016-01|2016-02|2016-03--i should get in this format.

For this i checked all the possibilities in Report level if i add some filter with month  means its working.

But i should get the output through Dynamic filters only for me which is not possible

can you please help me .

Regards,

Vinay G