XY Chart - Stacked Bar Chart Labels

I've checked the forum for someone with the same question but I don't anyone has.

I've got a XY Chart Stacked Bar Chart and I want to display the values on the chart (like the below image). I created an extra series as a line graph and displayed the bullets as labels but this only works for the bottom bar as the other line series aren't stacked and will display with there y relative to the bottom of the chart not the other values.

When I hover over the chart the tooltip displays in the correct locations. I don't think I'm missing anything obvious but if anyone has any ideas or solutions, please point me in the right direction.