Live and Learn they say

If you bring up your harvest layer and click on the Data Analysis tab under the map, there will be a drop-down box appear above the map where you can select another layer to analyze against. In the box on the right, select your Harvest layer/Date. The box on the left should be you Harvest layer/Yield. After a little grinding away by your computer, the area at the bottom will show you all the yield data on the different harvest days. Easy Peasy!