TOTALYTD not working as expected

Hello everyone,

I'm new to PowerBi and DAX so please bear with me.

Here's an example of the table I'm working on

Now, I would like to calculate TOTALYTD so this is what I write in DAX

YTD Fatturato = TOTALYTD(SUM(PowerBI_VenditePerGgCittaFamTipocli[Importo]); PowerBI_VenditePerGgCittaFamTipocli[DataOrdine]; all(PowerBI_VenditePerGgCittaFamTipocli[DataOrdine]))

And I get:

which the sum of revenue by month. I would like to add up the value each month, each year (it goes until 2016) so to get the total. 

I thought the issue was with the dates, so I create a Date Table and used that instead, but with no improvement. 

What am I doing wrong?

Thanks a lot