How to remove overlapping labels from chart?

[#1]

Hi all.

Any suggestions as to how I can remove these overlapping labels (whilst maintaining the legend)?

Many thanks, Michael.

[#2]

I should add that I have the following dimension (no legend or label – instead I have used reference lines to mark each year):

         FUDATE

And the following expressions (labelled ‘Excess Weight’ and ‘BMI’ respectively):

avg(FUEXCESSWEIGHT)

avg(FUBMI)