I scored 39. I suspect I may have aspergers syndrome (now combined with autism in DSM V). You might also want to try the RDOS aspie test:
http://www.rdos.net/eng/Aspie-quiz.php I also learned to speak late as a child. These tests are basically to screen yourself and see if you should go see a specialist. As for whether you should care, that really depends. Are you concerned about it? Is there any significant difficulties in life you come across? If no, don't bother. Adults don't get much out of autism/asperger diagnoses. If yes, then you might as well go see a specialist rather than worrying about it.
I haven't taken it recently (and thus can't copy+paste my score), but usually when I take it I get something like: Your Aspie score: 180 of 200 Your neurotypical (non-autistic) score: 20 of 200 You are very likely an aspie Or something like that. Of course, the scores fluctuate from time to time, but it's roughly the opposite of what you posted