SInce the dataset is very small I advice to re-shape your datafile in the following structure.
Please also check the get starting training video here
Find the result in attached workbook version 2018.2 located in the original thread.
viz nalmai version 2018.2.twbx 125.2 KB
Thank you for your response. I really appreciated your effort. But my manager insist that she would like to a see a trend.