I dislike the concept of a single-axis, back-and-forth "spectrum" such as your 12% would imply, but more of a multidimensional conglomerate of myriad spectra (plural), where e.g. spoken language when not overstimulated is one, spoken language ability WHEN overstimulated is another, social interactions when not oversocial-ed is one axis, social interaction ability while oversocial-ed is another, tactile sensory is one axis, smell/olfactory sensory is another, visual sensory is another, etc.
Because that's the reality, is that it's a mish-mash of several interconnected axes and spectra, that tend to go off the rails a bit faster / more easily than NT / allists seem to go off the rails and break down
Autism can range from non-verbal to high-functioning and everything in between. My nephew is nearly 17 and has a mind functioning on a third-grade level. I struggle heavily on a social level and often am overstimulated by lights, sounds, unfamiliar environments, etc.
Not all autistic folk have the same "level" of autism.
That's okay, jokes in text form do not often hit the way they were intended.
I was typing it out thinking "Oh this is going to be so funny when others see my stupid joke about autism percentages teehee." Perhaps not one of my best jokes.