Is it possible to set min value for chart axis?

[PHProger-themus]

I have this chart:

As you see minimum value is 69.5 and there is big difference between two series, but I'd like to start Y axis from 0 to visually observe just a small difference, is it possible?

Didn't found anything about this feature in docs.

[jfoucher]

Why are all similar requests marked as wontfix? Can I find an explanation somewhere?
Thanks
Edit: Oh no sorry I did not notice the wontfix label was removed. Is this planned? Is there any info on this feature anywhere? I'd like to do it if possible. Thanks