I see that you achieved a "zero" for your test score but you don't say if you are male or female and what age-bracket you are in. Are you still "pups"? Curious...
I achieved a "3" for my test score and I am in the 50-59 age bracket (male). My weakest area is right in the middle of the blue-green transition area, which I believe is common for men. My visual acuity isn't what it used to be (need reading glasses) but I'm happy with the results of this test.