How to sum value to the same month by years?

[Anonymous]

Hello, Everyone.

Currently, I get a question in app development of Qlik Sense.

Please read the example below.

I get source data as below (actually there are many record in each month)

Date ( YYYY-MM-DD )	Value
2013-01-01	1
2013-02-01	1
2013-03-01	1
2013-04-01	1
2013-05-01	1
2013-06-01	1
2013-07-01	1
2013-08-01	1
2013-09-01	1
2013-10-01	1
2013-11-01	1
2013-12-01	1
2014-01-01	1
2014-02-01	1
2014-03-01	1
2014-04-01	1
...	1

What I want to do is to get the sum from beginning to the same month in different years as below.

Dimension ( YYYY-MM )	Measure	Comment
2013-03	3	sum from 2013-01-01 to 2013-03-01
2014-03	15	sum from 2013-01-01 to 2014-03-01
...

I meet this requirement for the 1st time. So can anyone help me?

thank you very much.

Larry