If I guess right- You are getting single Dot as you have data for the year 2020 only. Now you have option of drill down on right top of your line chart as shown in the below image. You can go to Year, Quarter, Month, Day using those options.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…