Firstly, it would help if you provided data in a readily usable format.

That said, this should do the trick.

-- Create a table to house the demo data

CREATE TABLE #Data (

DataDate DATETIME

, amount1 INT

, amount2 INT

);

-- Add the demo data

INSERT INTO #Data ( DataDate, amount1, amount2 )

VALUES

( '5/1/2016 12:00', 1, 1 )

, ( '5/2/2016 12:00', 2, 1 )

, ( '5/3/2016 12:00', 4, 1 )

, ( '5/3/2016 12:00', 6, 1 )

, ( '5/3/2016 12:00', 8, 2 )

, ( '5/3/2016 12:03', 10, 1 )

, ( '5/5/2016 12:00', 12, 21 )

, ( '5/8/2016 12:00', 14, 1 )

, ( '5/8/2016 12:30', 16, 1 )

, ( '5/10/2016 12:00', 18, 4 )

, ( '5/11/2016 14:00', 20, 4 )

, ( '5/12/2016 12:00', 22, 4 )

, ( '5/13/2016 12:00', 24, 4 )

, ( '5/14/2016 12:00', 26, 4 )

, ( '5/15/2016 12:00', 28, 4 )

, ( '5/16/2016 12:00', 30, 4 )

, ( '5/17/2016 12:00', 32, 4 )

, ( '5/18/2016 12:00', 34, 4 )

, ( '5/19/2016 12:00', 36, 4 );

-----------------------------------------------------------

DECLARE @DF INT = @@DATEFIRST; -- Determine the current start day of the week.

SET DATEFIRST 1; -- Set the week to start on Monday

SELECT [week] = 'Week' + RIGHT(100 + DATEPART(wk, DataDate), 2)

, sum(amount1), SUM(amount2)

FROM #Data

GROUP BY DATEPART(wk, DataDate);

SET DATEFIRST @DF; -- Reset the startdate of the week to what it was.