At or above normal for my age, 65.
I swear the very first part, where you had to click on the round buttons, I'd click and it showed up then disappeared. As I went back to fill in the ones I'd missed, I realized that it required very fine centering of the arrow above the round button, more so than I'm used to when I click on things. If I went back and did that part again I suspect I'd score a little better, by maybe a point or two, because I'd finish that section a little faster.
That was interesting, and it's quite reassuring to score well, even though I have absolutely no fears that I'm at all impaired at this point in my life. Yes, I'm a bit slower at various things, but I've been watching that happen over the years.
A good fifteen years ago I did that yardstick drop thing with my then teenage sons. You know, it's the one where somebody holds a yardstick just above your waiting hand, and as soon as they drop it, you grab it and your reaction time shows in how far up the yardstick you actually grab. It was astonishing and slightly humiliating at how much more quickly my boys could grab the stick than I could. I'd almost hate to do that test now, because I'm sure I'd grab even more slowly than I did then.