@VN I can assure you that it doesn't matter for the plot (I could write you a quick proof, if you like: let x,y be independent vectors in the R^2. Then let a,b be scalars, so that for each x,y there are x',y' with x=a*x' and y=b*y.' Then the system {x,y} is equivalent up to stretching to {x',y'}. Proof: {x,y} are a base in R^2 as are {x',y'}. The R^2 is invariant to base transformation. qed.)
Also, I just don't have the normalised numbers anymore. I'm sorry.